Essentrics workout free download
Author: t | 2025-04-24
On this page you can download Essentrics Workout and install on Windows PC. Essentrics Workout is free Health Fitness app, developed by Essentrics. Latest version of Essentrics Workout is a free health fitness app developed by Essentrics that has 10,000 downloads. AppBrain
Essentrics Workout for Android - Download
Directly, in which you can log in to your streaming account and watch directly on your TV.Watch on your smartphone or tablet:– Download our iOS or Android mobile App via the Apple app store or via Google Play.OR– Watch directly on your smartphone or tablet’s web browser.For more details on how to stream, please visit our Essentrics TV Help Pages. How much does the Essentrics TV app cost? All apps are free to download and offer in app purchases for our monthly streaming service at $19.99/Month CAD & USD.We encourage you to sign up online via Essentricstv.com first to benefit from the web platform prices of $14.95 USD and $16.75 CAD. Once you’ve created your login via the web platform, you can use the same login credentials to log in to any of the Essentrics TV apps that you download. How do I download the free app? You may download the free Essentrics Workout App onto your smartphone, tablet or smart TV.Please follow these steps:Subscribe online on essentricstv.com before downloading the Essentrics App.Next, visit the Apple Store or Google Play or the Roku Channel Store to download the App.Log into the App with your same credentials from essentricstv.comKey Features of the App:– Download workouts within the App for offline viewing (available only on iOS and Android).– Create a list of your favourite workouts for quick access (available only on iOS and Android).– Share your daily workout with a friend by emailing or texting them a link to the exact workout from the App. Note: they must be members of Essentrics TV to watch the actual workout. Can I access the workouts offline? Essentrics TV workouts are not available for download but are available for offline viewing through our iOS and Android Apps. To add a workout for offline viewing (via the App): Visit the Apple Store (iOS) or Google Play (Android) to download the App. Open the App on your iOS or Android device, make sure you are connected to the internet. Log in if you are not already logged in. Click on the workout that you would like to
Essentrics Workout for iOS - Free download and software
Your 40sTONING &CELLULAR VITALITY21-Day Challenge Streaming on Essentrics TV!Start Challenge Today START 14-DAY FREE TRIAL Watch Preview Joining a Challenge is Simple, Follow These 3 Easy Steps! *By registering for daily workout reminders in Step 1, you agree to receive email communication from Essentrics, however, it does not automatically enroll you in Essentrics TV. Please complete Step 2 to join Essentrics TV. Sign-up for Daily EmailsEnter your name and email to receive your daily workout reminders and links via email.* Start 14-day Free TrialAlready a member of Essentrics TV?Log in to your account to start challenge.Not a member? Sign-up to Essentrics TV to start your 14-day free trial.**Cost: $14.95/month after trial. Prices may vary per country. Cancel anytime. Includes access to this program + full streaming platform and live classes.COMPLETE STEP 2. SIGN-UP / LOG IN THE PREVENTATIVE YEARSIn your 40s, your cellular regeneration cycle begins to slow down at a faster rate than before, resulting in more noticeable changes to how you feel. But there is an easy fix; awakening every muscle and activating your joints! Working all 650+ muscles in their full range of motion will combat this cycle by sending a signal to your cells that they are still needed! Full body movement, building mobility and strength is key during this time. About this Challenge Streamingon Essentrics TV Start Your 40s Challenge Today! Benefits:Increase your flexibility, mobility, and strength; energizing you to keep up with your daily schedule.Brighten and tighten your skin by improving circulation and flushingEnjoy a FREE Essentrics Workout ⭐️
Click on the icons below to purchase Free Bonus Material AVAILABLE EXCLUSIVELY WITH YOUR PURCHASE OF THE MIRACLE OF FLEXIBILITY The Miracle of FlexibilityAction Plan Workbookwith Bonus Videos(Available Now!) How To Claim Your Bonuses Follow these 3 Easy Steps: Order your CopyClick one of the bookseller links below to order(you can order from any bookseller and be eligible for these gifts)Available in hardcover & audio format.List price: $34.95 US | $39.95 CANPrice may vary by retailer.IN USAIN CANADA Fill out and Submit FormAfter purchasing the book, copy your receipt number and complete the form below.*By entering your information below, you agree to receive email communication from Essentrics. Claim your BonusesYour Free Bonus Material is on its way!Check your inbox for access to your bonuses: The Miracle of Flexibility Action Plan Workbook PDF with Bonus Videos.Thank you for your support!Questions? View our FAQ A Life-Changing Addition to Every Wellness LibraryThree essential factors determine how you move through the world without pain and feeling healthy in your body: flexibility, strength, and posture. For decades, former ballerina, Miranda Esmonde-White, has been developing the secret to mobility, good posture, and peak fitness with the daily Essentrics® workout.Now, for the first time in book form, Miranda has distilled the Essentrics program intothe ultimate reference guide for stretching and optimal mobility. About The Book A Comprehensive Guide to Essentrics that will help you get the most out of your workouts!From New York Times bestselling author and PBS host of Classical Stretch & Aging Backwards, Miranda Esmonde-White Miranda’s new book is designed to be the perfect companion to your Essentrics® workouts. Benefit from step-by-step instructions on how to perform each sequence properly and gain a deeper understanding of the primary muscles and joints being targeted for flexibility or strengthening during your routine.The Miracle of Flexibility features:60+ routines designed for everyday life, the workplace, conditioning, sports, healing and more!Empowering information to regain control over your physical wellbeingTips on proper alignment for your head, neck, back and feet positioningTechniques to stimulate your brainThis revolutionary technique, acclaimed by some of the world’s leading scientists, offers an effective approach to fitness. Rooted in science and with thousands of practitioners, Essentrics® has delivered results to everyone from world champions and Olympic medalists to regular people. It is recognized as a technique which improves performance, prevents injuries, and relieves pain.You Will Learn How To:Train your body as one interconnected unitUse constant movement as your guideWork the range of motion of every joint to reach your strength and flexibility goalsUnderstand the mechanics of your body and what it needs to remain pain and injury-freeReach the golden medium zone where your body is at its peakAvoid stiffness, pain, poor posture and immobility as you ageORDER YOUR COPY NOW Stream the Miracle of Flexibility Book Workouts Experience the teachings of Essentrics creator, Miranda Esmonde-White and Master Trainer Amanda Cyr with these two exclusive 20-minute workouts featured in her new book. ACCESS 14-DAY FREE TRIAL Stimulate Your Brain with Miranda Esmonde-White Stream Now Beginner Flexibility Workout with. On this page you can download Essentrics Workout and install on Windows PC. Essentrics Workout is free Health Fitness app, developed by Essentrics. Latest version ofDownload your Workouts with the App - Essentrics
Response. This perfect combo can reduce overall tension, creating a calming effect to help get more quality Z’s once your head hits that pillow.Pain In The Butt (And Back) Be Gone: Each Essentrics workout is designed to stretch and strengthen your body for increased mobility. What does this mean for you? For one, it will help ease you into better posture by strengthening the joints of your spine to support your expanding belly. This can help keep common aches and pains – like sciatica and lower back problems – far, far away.Amped Up Awareness: Essentrics is an intelligently designed program, which strengthens the body while relaxing the nervous system. Our workouts are slow to moderately paced on purpose! This increases communication between the body and the brain, helping you safely adjust to all these exciting changes.Weight For It: When it comes to pregnancy, weight gain is not only inevitable, it’s essential to overall health. However, gaining too much weight may contribute to conditions like gestational diabetes. Our pregnancy workouts will not only give your mood a boost but will also jumpstart your metabolism by working large muscle groups for that extra calorie burn.Huge Impact: Essentrics is low impact, which means our program is designed to be gentle on the joints. An Essentrics prenatal workout focuses on building strength in the muscles around the joints to prevent overstretching due to the pregnancy-induced hormone relaxin. And while we can’t promise a completely pain-free labor… we can say it will ease the process.Me Time: In a time-crunched world, setting aside “me time” to do something good for YOU is incredibly important. Our pregnancy collection houses workouts varying in length from 10-45 minutes to help keep you moving. The best part? The only equipment you will need are things readily available like pillows or towels for extra support, a belt that doubles as an elastic and a sturdy chair.Bonus: Staying active during this transformative time will boost your confidence and help you take on this journey with strength and grace. Pregnancy has got nothing on you!Contributing Writer Lisa MozoStream our Prenatal Collection on Essentrics TV!View CollectionStart your 14-day Free TrialEssentrics Workout for iPhone - Download - Softonic
Bulbs with ease. Remember to move slowly and breathe, giving your body the chance to recognize that what is happening is not dangerous but advantageous.3- Move Gently Through Your Full Range of MotionThe best part of the Essentrics program is the way it prepares us for actions that take place in daily life. To maintain mobility and flexibility, Essentrics workouts are based on gentle, full-body movements. Being mobile and flexible is more than just being able to touch your toes – it means being able to move in all directions with ease.In Essentrics®, we move through the natural range of motion of each joint and muscle while performing familiar movements across all planes of motion. We Pull Weeds, Wash Tables and Remove Sweaters in ways that allow every student to work at their own pace. Over time, these movements become easier as we strengthen not just the larger ones that we can see in the mirror, but the smaller muscles that support the joints as well.Improving our mobility and flexibility with Essentrics® exercises is easy and enjoyable because the movements are familiar, safe, and gentle. This full body workout keeps all our muscles and joints functioning well so we can live our lives free of limitations.Contributing writer Beth Oldfield, Level 4 Essentrics® Instructor Try the workouts based on Miranda’s new book:The Miracle of Flexibility!View ProgramStart your 14-day Free TrialEssentrics Workout for Android - Free App Download - AppBrain
Toxins.Sculpt your body and boost a naturally slowing metabolism.Improve your posture.Prevent aches and pains, correct past injuries, and avoid conditions from becoming chronic (such as back, shoulder, and neck pain, sciatica, plantar fasciitis).Lubricate tight fascia and connective tissue.Relieve stress and improve mental health.Prepare your muscles to complement your favourite activities.No matter your age…Activating your muscle cells reprograms your cellular regeneration cycle by sending a message that they’re needed. “Use it or lose it” might be an age-old saying but it is one of the key secrets to vibrant aging. The Science of Essentrics There is science behind Essentrics, and it’s the reason you experience real results. As you age, you might be feeling changes in your body that you think you have no control over, when in reality – you do! Our muscle mass contains cells that keep our energy up, help us burn calories and many more important functions. When comparing muscle mass loss per decade of a semi-sedentary and physically active person, you’ll notice a significant difference in the rate of decline (see diagram below). Although we naturally lose some of these cells as we age, it is at a much lower rate if we stay or become active. Every Essentrics workout is full body and targets all 650+ muscles - helping us to maintain a larger amount of these important cells as we age, which translates into a more energetic, mobile and pain-free body. Read more about the science A Lifetime of Movement with Essentrics Find outEssentrics Workout on Windows PC Download Free - 8.806.1
Expecting Moms Choose Essentrics®It’s official – you’re expecting! First-off: Congratulations! Whether it is your first or your fifth, pregnancy is an exciting and life-altering time that brings with it a flood of physical, emotional and hormonal changes to a woman’s body. This means it is the perfect time to begin prioritizing your own health and wellness by putting on your proverbial oxygen mask first. While there are many components that contribute to a healthy pregnancy, experts unanimously agree the importance of moving cannot be understated!When it comes to the physical demands required to accommodate a growing fetus, a recent human endurance study out of Duke University found that one of the most extreme experiences a human being can endure isn’t an ultra-marathon… it’s pregnancy. In fact, being pregnant was shown to be akin to running a marathon for 10 months straight! And for those of you who have experienced the miracle of birth, this sounds about right. If only there were a full-body pregnancy workout that is both gentle on the joints, yet effective enough to build strength and maximize posture while boosting metabolism and energy… oh wait, there is. It’s called Essentrics!10 Reasons Essentrics® Is Your Go-To Pregnancy Workout The 3 S’s: As previously stated, pregnancy is a veritable feat of athleticism! So, choosing the right pregnancy workout is essential. Essentrics workouts target all 650 muscles for increased strength, stability and stamina to support you through each trimester, labor & delivery, postpartum recovery and this thing called life!Get A Leg Up: Growing a baby from scratch can induce some seismic shifts. And while Essentrics always targets the entire muscular system, our strengthening moves for the legs, buttocks and calves have been proven to successfully stave off some common pregnancy-induced side effects, such as leg cramps, water retention and varicose veins.Checks & Balances: When it comes to better balance – Essentrics checks all the boxes. As your baby bump grows, your center of gravity will also need to shift to accommodate it. Our program safely strengthens the musculature of the core, which can positively influence your overall coordination and balance.Pump It Up: Did you know that Essentrics has a healthy effect on blood circulation? By moving the body as an integrated whole, our workouts actively pump fresh blood to irrigate the entire system for better blood flow.Sweet Dreams: Essentrics workouts are unique because they are challenging, without inducing a stress. On this page you can download Essentrics Workout and install on Windows PC. Essentrics Workout is free Health Fitness app, developed by Essentrics. Latest version of Essentrics Workout is a free health fitness app developed by Essentrics that has 10,000 downloads. AppBrain
Unlock the Power of Flexibility: Free Essentrics Workout Download
Julia Bentz is a Level 4 Essentrics Instructor, Educator and Essentrics TV workout host based in Grand Rapids, Michigan. She began teaching Essentrics in 2013, became a mentor teacher in 2016, and joined the Teacher Training department at the Essentrics Head Office in 2021. Julia’s roles include writing, editing and leading workshops and live teacher trainings.She holds a bachelor’s degree in Acting, and her experience in that field continues to be an invaluable resource for honing her teaching style, body awareness, and dynamic understanding of how movement affects us – physically, mentally, and emotionally.As a teacher, Julia draws on her lifelong interest in health and the human experience to help people enhance their quality of life through Essentrics.Essentrics reserves the right to have a substitute Educator teach the workshop if the scheduled Educator is unavailable due to unforeseen circumstances. This change may be made without notice. Please know that we always make every effort to hold our events as planned.The Desk Workout Collection - Essentrics
Welcome to a decade that is bursting with life and activity! The 50s are often the busiest, yet most rewarding years of your life. Whether you’re solidly in your career or newly retired, raising children, teens or caring for aging parents, free time is precious. Workouts need to be both efficient at delivering results and restorative to counteract aches and pains. Keep up with the pace of daily life with a feel-good exercise program designed to keep you active and healthy.An effective full-body workout The good news is that every Essentrics workout will energize the body, soothe overworked muscles, and release stress. The best part: every muscle is exercised, keeping joints healthy and moving optimally. By working every joint through its full range of motion, strength gets built into the smaller stabilizing muscles – protecting you from injury and ensuring you keep the full potential power you were born with! And inside every muscle – big or small – are the calorie-burning mitochondria. These microscopic engines need to be running well because just like a locomotive, this is what gives you the energy to propel you through your day. Essentrics routines are designed to strengthen all 650 muscles, so you stay strong, mobile, and injury-free.Release tension and replenish energy We call this decade The Active Years, but ensuring you get enough restorative sleep is equally important! Rather than burning the candle at both ends, a good night’s sleep allows your body to replenish its energy for the next day. If. On this page you can download Essentrics Workout and install on Windows PC. Essentrics Workout is free Health Fitness app, developed by Essentrics. Latest version ofWorkouts by Instructor - Essentrics TV
What is Essentrics TV? Essentrics TV is an online streaming platform that offers live virtual classes and unlimited access to 400+ Essentrics workouts, including all seasons of the Classical Stretch TV Series on PBS. Enjoy new workouts and health challenges (added regularly), available exclusively to members.All videos are accessible 24/7—from your computer, smartphone, tablet and smart TV—enabling you to work out anytime, anywhere! How do I subscribe and start my 14-day Free Trial? Sign up for your 14-day Free Trial on Essentrics TV here. This will enable you to log into the online streaming platform and try our different workouts for a period of 14 days (valid for first-time subscribers only).Memberships are charged on a monthly basis and may be cancelled at any time. You may also offer streaming as a gift (1-12 month options available).Important: You’ll be asked to enter your credit card to start your free trial, however, you will NOT be charged until your 14-day trial is over. If you cancel on the 14th day or before, you will not be charged and will have access to streaming until your trial period is over. If you do NOT cancel in this time frame, you will automatically be billed the streaming fee on a monthly basis.Note: We currently pre-authorize each credit card with a $1 authorization hold which will be credited back to your account at the end of your free-trial. How do I access Essentrics TV? You can access Essentrics TV on your computer, smartphone, tablet and smart TV once you become a member and then log in to your account.Here’s how to access Essentrics TV:Watch on your Computer:– Go to essentricstv.com to access Essentrics TV via your web browser.Watch on your smart TV: – Download our App via Apple TV or Android TV.OR– Download our iOS or Android mobile App and then use a mirroring device such as Chromecast, Amazon Fire TV stick, etc. to “mirror” to your smart TV.OR– Connect your computer/laptop to your smart TV using an HDMI cable.OR– Certain smart TVs that have a built-in web browser, will enable you to access essentricstv.comComments
Directly, in which you can log in to your streaming account and watch directly on your TV.Watch on your smartphone or tablet:– Download our iOS or Android mobile App via the Apple app store or via Google Play.OR– Watch directly on your smartphone or tablet’s web browser.For more details on how to stream, please visit our Essentrics TV Help Pages. How much does the Essentrics TV app cost? All apps are free to download and offer in app purchases for our monthly streaming service at $19.99/Month CAD & USD.We encourage you to sign up online via Essentricstv.com first to benefit from the web platform prices of $14.95 USD and $16.75 CAD. Once you’ve created your login via the web platform, you can use the same login credentials to log in to any of the Essentrics TV apps that you download. How do I download the free app? You may download the free Essentrics Workout App onto your smartphone, tablet or smart TV.Please follow these steps:Subscribe online on essentricstv.com before downloading the Essentrics App.Next, visit the Apple Store or Google Play or the Roku Channel Store to download the App.Log into the App with your same credentials from essentricstv.comKey Features of the App:– Download workouts within the App for offline viewing (available only on iOS and Android).– Create a list of your favourite workouts for quick access (available only on iOS and Android).– Share your daily workout with a friend by emailing or texting them a link to the exact workout from the App. Note: they must be members of Essentrics TV to watch the actual workout. Can I access the workouts offline? Essentrics TV workouts are not available for download but are available for offline viewing through our iOS and Android Apps. To add a workout for offline viewing (via the App): Visit the Apple Store (iOS) or Google Play (Android) to download the App. Open the App on your iOS or Android device, make sure you are connected to the internet. Log in if you are not already logged in. Click on the workout that you would like to
2025-04-18Your 40sTONING &CELLULAR VITALITY21-Day Challenge Streaming on Essentrics TV!Start Challenge Today START 14-DAY FREE TRIAL Watch Preview Joining a Challenge is Simple, Follow These 3 Easy Steps! *By registering for daily workout reminders in Step 1, you agree to receive email communication from Essentrics, however, it does not automatically enroll you in Essentrics TV. Please complete Step 2 to join Essentrics TV. Sign-up for Daily EmailsEnter your name and email to receive your daily workout reminders and links via email.* Start 14-day Free TrialAlready a member of Essentrics TV?Log in to your account to start challenge.Not a member? Sign-up to Essentrics TV to start your 14-day free trial.**Cost: $14.95/month after trial. Prices may vary per country. Cancel anytime. Includes access to this program + full streaming platform and live classes.COMPLETE STEP 2. SIGN-UP / LOG IN THE PREVENTATIVE YEARSIn your 40s, your cellular regeneration cycle begins to slow down at a faster rate than before, resulting in more noticeable changes to how you feel. But there is an easy fix; awakening every muscle and activating your joints! Working all 650+ muscles in their full range of motion will combat this cycle by sending a signal to your cells that they are still needed! Full body movement, building mobility and strength is key during this time. About this Challenge Streamingon Essentrics TV Start Your 40s Challenge Today! Benefits:Increase your flexibility, mobility, and strength; energizing you to keep up with your daily schedule.Brighten and tighten your skin by improving circulation and flushing
2025-04-18Response. This perfect combo can reduce overall tension, creating a calming effect to help get more quality Z’s once your head hits that pillow.Pain In The Butt (And Back) Be Gone: Each Essentrics workout is designed to stretch and strengthen your body for increased mobility. What does this mean for you? For one, it will help ease you into better posture by strengthening the joints of your spine to support your expanding belly. This can help keep common aches and pains – like sciatica and lower back problems – far, far away.Amped Up Awareness: Essentrics is an intelligently designed program, which strengthens the body while relaxing the nervous system. Our workouts are slow to moderately paced on purpose! This increases communication between the body and the brain, helping you safely adjust to all these exciting changes.Weight For It: When it comes to pregnancy, weight gain is not only inevitable, it’s essential to overall health. However, gaining too much weight may contribute to conditions like gestational diabetes. Our pregnancy workouts will not only give your mood a boost but will also jumpstart your metabolism by working large muscle groups for that extra calorie burn.Huge Impact: Essentrics is low impact, which means our program is designed to be gentle on the joints. An Essentrics prenatal workout focuses on building strength in the muscles around the joints to prevent overstretching due to the pregnancy-induced hormone relaxin. And while we can’t promise a completely pain-free labor… we can say it will ease the process.Me Time: In a time-crunched world, setting aside “me time” to do something good for YOU is incredibly important. Our pregnancy collection houses workouts varying in length from 10-45 minutes to help keep you moving. The best part? The only equipment you will need are things readily available like pillows or towels for extra support, a belt that doubles as an elastic and a sturdy chair.Bonus: Staying active during this transformative time will boost your confidence and help you take on this journey with strength and grace. Pregnancy has got nothing on you!Contributing Writer Lisa MozoStream our Prenatal Collection on Essentrics TV!View CollectionStart your 14-day Free Trial
2025-03-31Bulbs with ease. Remember to move slowly and breathe, giving your body the chance to recognize that what is happening is not dangerous but advantageous.3- Move Gently Through Your Full Range of MotionThe best part of the Essentrics program is the way it prepares us for actions that take place in daily life. To maintain mobility and flexibility, Essentrics workouts are based on gentle, full-body movements. Being mobile and flexible is more than just being able to touch your toes – it means being able to move in all directions with ease.In Essentrics®, we move through the natural range of motion of each joint and muscle while performing familiar movements across all planes of motion. We Pull Weeds, Wash Tables and Remove Sweaters in ways that allow every student to work at their own pace. Over time, these movements become easier as we strengthen not just the larger ones that we can see in the mirror, but the smaller muscles that support the joints as well.Improving our mobility and flexibility with Essentrics® exercises is easy and enjoyable because the movements are familiar, safe, and gentle. This full body workout keeps all our muscles and joints functioning well so we can live our lives free of limitations.Contributing writer Beth Oldfield, Level 4 Essentrics® Instructor Try the workouts based on Miranda’s new book:The Miracle of Flexibility!View ProgramStart your 14-day Free Trial
2025-03-28Expecting Moms Choose Essentrics®It’s official – you’re expecting! First-off: Congratulations! Whether it is your first or your fifth, pregnancy is an exciting and life-altering time that brings with it a flood of physical, emotional and hormonal changes to a woman’s body. This means it is the perfect time to begin prioritizing your own health and wellness by putting on your proverbial oxygen mask first. While there are many components that contribute to a healthy pregnancy, experts unanimously agree the importance of moving cannot be understated!When it comes to the physical demands required to accommodate a growing fetus, a recent human endurance study out of Duke University found that one of the most extreme experiences a human being can endure isn’t an ultra-marathon… it’s pregnancy. In fact, being pregnant was shown to be akin to running a marathon for 10 months straight! And for those of you who have experienced the miracle of birth, this sounds about right. If only there were a full-body pregnancy workout that is both gentle on the joints, yet effective enough to build strength and maximize posture while boosting metabolism and energy… oh wait, there is. It’s called Essentrics!10 Reasons Essentrics® Is Your Go-To Pregnancy Workout The 3 S’s: As previously stated, pregnancy is a veritable feat of athleticism! So, choosing the right pregnancy workout is essential. Essentrics workouts target all 650 muscles for increased strength, stability and stamina to support you through each trimester, labor & delivery, postpartum recovery and this thing called life!Get A Leg Up: Growing a baby from scratch can induce some seismic shifts. And while Essentrics always targets the entire muscular system, our strengthening moves for the legs, buttocks and calves have been proven to successfully stave off some common pregnancy-induced side effects, such as leg cramps, water retention and varicose veins.Checks & Balances: When it comes to better balance – Essentrics checks all the boxes. As your baby bump grows, your center of gravity will also need to shift to accommodate it. Our program safely strengthens the musculature of the core, which can positively influence your overall coordination and balance.Pump It Up: Did you know that Essentrics has a healthy effect on blood circulation? By moving the body as an integrated whole, our workouts actively pump fresh blood to irrigate the entire system for better blood flow.Sweet Dreams: Essentrics workouts are unique because they are challenging, without inducing a stress
2025-04-13