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Your target heart rate is the range at which sustained physical activity - running, cycling, swimming laps, or any other aerobic exercise - is considered safe and effective.

Why Fitness MattersSee All
Physical inactivity is just as big a risk factor for heart disease as high blood pressure and smoking are. So, be the exception rather than the rule. Read on for some great ways to exercise for a healthier heart. ...more
Physical inactivity is just as big a risk factor for heart disease as high blood pressure and smoking are. So, be the exception rather than the rule. Read on for some great ways to exercise for a healthier heart. ...more
Get StartedSee All
To improve your heart and lung fitness, aim for 30 to 60 minutes of aerobic exercise several times a week. ...more
Design a yearlong fitness plan to make sure that you have effective lifestyle changes in place. ...more
 Five Fresh Forms of Indoor Fitness in Get Equipped
Cold weather doesn't have to put a chill on your fitness routine, even if the treadmill or stair-stepper seems boring compared with jogging or riding your bike outside. ...more
 Athletic Shoes: Lace Them to Fit in Get Equipped
Simply lacing your shoes or sneakers correctly along with choosing a shoe that fits your foot correctly, can add comfort to your stride and prevent foot injuries. ...more
 Dehydration in Avoid Mistakes and Injuries
Dehydration means that you don’t have enough water in your body. Learn more about this condition, including causes, symptoms, prevention, and treatment. ...more
When you sprain an ankle, 1 or more ligaments on the outside of your ankle become stretched or torn. ...more
 Sports-Related Injuries in Play It Safe
What is a contusion? A sprain? A strain? Find out more about these common sports injuries....more
 Knee Ligament Injuries in Play It Safe
Learn about the 4 major ligaments of the knee, and about common injuries, symptoms, and treatment. ...more
Grasp the BasicsYour Exercise ProgramGet EquippedAvoid Mistakes and InjuriesPlay It Safe
To improve your heart and lung fitness, aim for 30 to 60 minutes of aerobic exercise several times a week. ...more
Design a yearlong fitness plan to make sure that you have effective lifestyle changes in place. ...more
 Five Fresh Forms of Indoor Fitness in Get Equipped
Cold weather doesn't have to put a chill on your fitness routine, even if the treadmill or stair-stepper seems boring compared with jogging or riding your bike outside. ...more
 Athletic Shoes: Lace Them to Fit in Get Equipped
Simply lacing your shoes or sneakers correctly along with choosing a shoe that fits your foot correctly, can add comfort to your stride and prevent foot injuries. ...more
 Dehydration in Avoid Mistakes and Injuries
Dehydration means that you don’t have enough water in your body. Learn more about this condition, including causes, symptoms, prevention, and treatment. ...more
When you sprain an ankle, 1 or more ligaments on the outside of your ankle become stretched or torn. ...more
 Sports-Related Injuries in Play It Safe
What is a contusion? A sprain? A strain? Find out more about these common sports injuries....more
 Knee Ligament Injuries in Play It Safe
Learn about the 4 major ligaments of the knee, and about common injuries, symptoms, and treatment. ...more
Get MovingSee All
Stretching is an easy thing you can do to improve your health, yet it's often the most neglected part of people's fitness regimens. Stretching can reduce your injury risk and help you become more limber, regardless of your age and physical condition. ...more
 Why You Should Try Yoga in Stretch and Flex
Yoga is a series of stretches and poses that you do with breathing techniques. It offers the powerful benefits of exercise. And since yoga is gentle, almost anyone can do it, regardless of your age or fitness level. ...more
Taking time each week to build your strength can help you live a more healthy and independent life. Read on to dispel myths and to get the facts about strength training. ...more
Invest some time at the gym to get your muscles in peak condition....more
 Ready, Set, Run! in Run and Jog
It may not be as trendy as Pilates or power yoga, but running still delivers a great fat-burning, stress-reducing aerobic workout. Here's how to get started. ...more
Knowing about common injuries and how to prevent them can keep you on track toward achieving your fitness goals. ...more
Finding ways to get exercise as you get older is a smart and easy way to stay fit and improve your health. ...more
Riding a bicycle can be an excellent fitness activity. Cyclists can burn 400 to 700 calories an hour when they're pedaling at a good pace. ...more
Stretch and FlexBuild Endurance and StrengthRun and JogTry Something New
Stretching is an easy thing you can do to improve your health, yet it's often the most neglected part of people's fitness regimens. Stretching can reduce your injury risk and help you become more limber, regardless of your age and physical condition. ...more
 Why You Should Try Yoga in Stretch and Flex
Yoga is a series of stretches and poses that you do with breathing techniques. It offers the powerful benefits of exercise. And since yoga is gentle, almost anyone can do it, regardless of your age or fitness level. ...more
Taking time each week to build your strength can help you live a more healthy and independent life. Read on to dispel myths and to get the facts about strength training. ...more
Invest some time at the gym to get your muscles in peak condition....more
 Ready, Set, Run! in Run and Jog
It may not be as trendy as Pilates or power yoga, but running still delivers a great fat-burning, stress-reducing aerobic workout. Here's how to get started. ...more
Knowing about common injuries and how to prevent them can keep you on track toward achieving your fitness goals. ...more
Finding ways to get exercise as you get older is a smart and easy way to stay fit and improve your health. ...more
Riding a bicycle can be an excellent fitness activity. Cyclists can burn 400 to 700 calories an hour when they're pedaling at a good pace. ...more
Stay MotivatedSee All
 How and Why to Keep a Training Log in Stay Motivated
A training log helps you organize and save information about your exercise routine so you can work toward your important goals. ...more
 How and Why to Keep a Training Log in Stay Motivated
A training log helps you organize and save information about your exercise routine so you can work toward your important goals. ...more
Make Time for FitnessSee All
Here's what you need to know about treating a minor sports injury, such as a twisted ankle, shin splint, or strained muscle. ...more
Here's what you need to know about treating a minor sports injury, such as a twisted ankle, shin splint, or strained muscle. ...more
Improve Your HealthSee All
 How to Beat Serious Stress in Relieve Stress
When you're faced with a highly stressful event in your life, the strategies outlined here will help you cope. ...more
 Managing Work-Related Stress in Relieve Stress
An overview of workplace stress, with helpful tips and exercises to help you relax and relieve some pressure....more
Keeping extra weight off needs effort and commitment, just as losing weight does....more
Physical inactivity is just as big a risk factor for heart disease as high blood pressure and smoking are. So, be the exception rather than the rule. Read on for some great ways to exercise for a healthier heart. ...more
The millions of Americans diagnosed with heart and cardiovascular diseases can benefit from making healthy choices in their day-to-day lives. ...more
People with arthritis can improve their health and fitness through exercise without damaging their joints. ...more
Relieve StressManage Your WeightProtect Your Heart, Improve CirculationPreserve Function, Ease Arthritis PainBone Up Against OsteoporosisHelp Control Diabetes
 How to Beat Serious Stress in Relieve Stress
When you're faced with a highly stressful event in your life, the strategies outlined here will help you cope. ...more
 Managing Work-Related Stress in Relieve Stress
An overview of workplace stress, with helpful tips and exercises to help you relax and relieve some pressure....more
Keeping extra weight off needs effort and commitment, just as losing weight does....more
Physical inactivity is just as big a risk factor for heart disease as high blood pressure and smoking are. So, be the exception rather than the rule. Read on for some great ways to exercise for a healthier heart. ...more
The millions of Americans diagnosed with heart and cardiovascular diseases can benefit from making healthy choices in their day-to-day lives. ...more
People with arthritis can improve their health and fitness through exercise without damaging their joints. ...more
Children & TeensSee All
It may not always be possible to avoid injury when playing sports, especially physical contact sports. But there are things kids can do to protect themselves. Preparing before and after a game or practice session by warming up muscles and then stretching can help. ...more
 Exercise and Teenagers in Children & Teens
Teens need at least 60 minutes of moderate to vigorous physical activity on most days for good health and fitness and for healthy weight during growth. ...more
It may not always be possible to avoid injury when playing sports, especially physical contact sports. But there are things kids can do to protect themselves. Preparing before and after a game or practice session by warming up muscles and then stretching can help. ...more
 Exercise and Teenagers in Children & Teens
Teens need at least 60 minutes of moderate to vigorous physical activity on most days for good health and fitness and for healthy weight during growth. ...more
WomenSee All
 Exercise During Pregnancy in Women
If you exercised before pregnancy, you can safely continue exercising. If you were inactive or you have medical complications, talk with your healthcare provider before beginning to exercise. ...more
 Weight Training for Women in Women
Misconceptions about weight training--often based on unfounded fears of becoming too muscular--can keep women from pushing their fitness levels. ...more
 Staying Healthy After Menopause in Women
Good nutrition and regular exercise can help you stay healthy and youthful at this stage of life. ...more
 Exercise During Pregnancy in Women
If you exercised before pregnancy, you can safely continue exercising. If you were inactive or you have medical complications, talk with your healthcare provider before beginning to exercise. ...more
 Weight Training for Women in Women
Misconceptions about weight training--often based on unfounded fears of becoming too muscular--can keep women from pushing their fitness levels. ...more
 Staying Healthy After Menopause in Women
Good nutrition and regular exercise can help you stay healthy and youthful at this stage of life. ...more
Older AdultsSee All
 Exercise Ideas for Older Adults in Older Adults
Finding ways to get exercise as you get older is a smart and easy way to stay fit and improve your health. ...more
 Exercise Ideas for Older Adults in Older Adults
Finding ways to get exercise as you get older is a smart and easy way to stay fit and improve your health. ...more
Interactive ToolsSee All
 Children's BMI Calculator
BMI, or body mass index, uses weight and height to calculate weight status for adults. BMI for children and teens also takes into account gender and age because healthy body fatness differs between boys and girls and changes as they grow. This BMI calculator will help you determine if your child is at a healthy weight....more
 Target Heart Rate Calculator
Your target heart rate is the range at which sustained physical activity - running, cycling, swimming laps, or any other aerobic exercise - is considered safe and effective....more
 Cycling Quiz
You’ve been vowing to get more exercise, so why not pump up the tires and head out on your bike? Better yet, get the family out with you, and everyone benefits....more
 Foot Health Quiz
Most people would agree that it's no small problem when their feet ache. Yet foot problems and chronic pain often go ignored. Learning about foot care can help you recognize when to see a doctor for treatment....more
 Children's BMI Calculator
BMI, or body mass index, uses weight and height to calculate weight status for adults. BMI for children and teens also takes into account gender and age because healthy body fatness differs between boys and girls and changes as they grow. This BMI calculator will help you determine if your child is at a healthy weight....more
 Target Heart Rate Calculator
Your target heart rate is the range at which sustained physical activity - running, cycling, swimming laps, or any other aerobic exercise - is considered safe and effective....more
 Cycling Quiz
You’ve been vowing to get more exercise, so why not pump up the tires and head out on your bike? Better yet, get the family out with you, and everyone benefits....more
 Foot Health Quiz
Most people would agree that it's no small problem when their feet ache. Yet foot problems and chronic pain often go ignored. Learning about foot care can help you recognize when to see a doctor for treatment....more
Videos (27) See All
Calculators (2)
Risk Assessments (1)