Running is one of the simplest ways to stay fit. All you really need is a good pair of shoes. You can run in a park, around your neighborhood, on a track, or on a treadmill, where you can easily track your distance, time, speed, and heart rate.
The benefits go well beyond burning calories. Research links regular running to a longer life, a healthier heart, better mood, stronger bones, and even healthier knees. Here’s what the evidence shows, plus a simple plan to help you get started safely.
9 Research-Backed Benefits of Running
1. It May Help You Live Longer
Runners tend to live longer than non-runners. In a Stanford University study that followed adults aged 50 and older for about two decades, 15% of runners had died after 19 years, compared with 34% of non-runners. Runners also developed disabilities later in life.
You don’t need to run far or fast to benefit. A large study of more than 55,000 adults found that runners had about a 30% lower risk of death from any cause and a 45% lower risk of death from heart disease than non-runners, even when they ran only 5 to 10 minutes a day at slow speeds.
2. It Boosts Your Mood
Running can lift your mood and ease stress. Many people experience a “runner’s high,” a sense of calm and well-being after a run that’s linked to natural chemicals released in the brain, including endocannabinoids. Regular aerobic exercise is also associated with a lower risk of depression and can help reduce symptoms of anxiety. Running isn’t a replacement for professional treatment, but it can be a helpful part of caring for your mental health.
3. It Helps Reduce Belly Fat
Running burns calories and helps reduce overall body fat, including visceral fat, the deep belly fat that surrounds your organs. Visceral fat tends to increase with age and is linked to type 2 diabetes, heart disease, and other chronic conditions. Aerobic exercise like running is one of the most effective ways to reduce it, especially when combined with a healthy diet. For more on this, see our guide to easy home exercises for belly fat reduction.
4. It Burns a Lot of Calories
Running is one of the most efficient calorie-burning activities. According to Harvard Health Publishing, running at 5 mph (a 12-minute mile) for 30 minutes burns about:
- 240 calories for a 125-pound person
- 288 calories for a 155-pound person
- 336 calories for a 185-pound person
That’s more than double what the same person burns walking at a moderate pace of 3.5 mph. Running faster or on an incline burns even more.
5. It Supports Heart Health
Running strengthens your heart muscle, helps lower blood pressure, and can improve cholesterol levels, including raising HDL (“good”) cholesterol. Over time, these changes reduce your risk of heart disease and stroke.
6. It Improves Your Aerobic Fitness
Running won’t make your lungs bigger, but it does make your heart, lungs, and muscles work together more efficiently. Your breathing muscles get stronger, your heart pumps more blood with each beat, and your muscles get better at using oxygen. The result: everyday activities like climbing stairs feel easier, and you get less winded over time.
7. It Strengthens Bones and May Protect Your Knees
Running is a weight-bearing exercise, which means it puts healthy stress on your bones. That stress signals your body to build and maintain bone density, which helps protect against osteoporosis as you age.
Running also has an undeserved reputation for wearing out knees. A large review of studies found that only 3.5% of recreational runners had hip or knee arthritis, compared with 10.2% of sedentary people. The rate was higher, 13.3%, among elite and competitive runners who trained at very high volumes for many years. For most people, moderate running appears to be good for joint health.
8. It Can Help You Sleep Better
Regular exercise, including running, can help you fall asleep faster and sleep more deeply. You can run at whatever time of day works best for you. If you find that evening runs leave you feeling wired, try to finish vigorous workouts at least an hour before bedtime.
9. It May Support Your Immune System
Regular moderate exercise helps your immune system work more efficiently. People who exercise regularly tend to get fewer upper respiratory infections, such as colds, than people who are inactive. Running won’t make you immune to illness, but along with good sleep, a healthy diet, and vaccinations, it’s part of a healthy foundation.
Why Choose Running?
Running is convenient and affordable. You don’t need a gym membership or special equipment. You can simply step outside your door and go. The main investment is a good pair of running shoes, which often costs about the same as one or two months at a gym.
Running is also flexible. You can run alone to clear your head, listen to music or podcasts for motivation, or join a local running group for company and accountability. Signing up for a 5K or other event can give you a goal to work toward.
How to Start Running
The best way to start is slowly. Many new runners do too much too soon, which leads to soreness, injury, or burnout. A run-walk approach lets your body adapt gradually:
- Week 1 to 2: Three days a week, warm up with 5 minutes of brisk walking. Then alternate 1 minute of easy running with 2 minutes of walking for about 20 minutes. Cool down with 5 minutes of walking.
- Week 3 to 4: Increase to 2 minutes of running and 2 minutes of walking.
- Week 5 to 6: Try 3 to 4 minutes of running with 1 to 2 minutes of walking.
- Week 7 and beyond: Gradually lengthen your running intervals until you can run 20 to 30 minutes continuously.
Run at a conversational pace, meaning you can speak in short sentences. If you’re gasping for air, slow down or walk. There’s no rush to move on to the next stage. Repeat a week as many times as you need.
A running app or fitness watch can help you track your intervals and progress. To keep things interesting, vary where you run: parks, trails, tracks, and treadmills all work. A treadmill lets you control your pace and incline, and it’s a good option in bad weather. For more ideas, check out these treadmill exercises you probably didn’t know.
Tips to Run Safely and Stay Motivated
- Build up gradually. A common rule of thumb is to increase your weekly running time or distance by no more than about 10%. It’s not a hard rule, but it’s a useful guard against doing too much too fast.
- Schedule rest days. Beginners should run every other day, giving muscles, tendons, and bones time to recover. On off days, walking, cycling, or strength training are great options.
- Get the right shoes. Choose comfortable running shoes that fit well. A specialty running store can help you find a good fit. Replace them every 300 to 500 miles or when the cushioning feels worn.
- Add strength training. Strengthening your hips, glutes, legs, and core two days a week can help prevent common running injuries.
- Take care of the basics. Get enough sleep, eat a balanced diet, stay hydrated, and limit alcohol. Avoid tobacco entirely.
Common Challenges and How to Handle Them
Soreness vs. Pain
Mild muscle soreness for a day or two after a run is normal, especially when you’re starting out. Sharp pain, pain that gets worse as you run, swelling, or pain that lasts more than a few days is different. Stop running and see a doctor or physical therapist. A physical therapist can assess your running form, suggest strengthening exercises, recommend appropriate footwear, and help you build a training plan that prevents future injuries.
Air Pollution
When you run, you breathe in more air, which also means you breathe in more of any pollution in that air. For most people in most places, the health benefits of running outweigh the risks. To limit your exposure:
- Check the local Air Quality Index (AQI) before you head out. In the U.S., AirNow.gov provides real-time readings.
- Choose parks and quieter streets over busy roads.
- Avoid rush-hour traffic. On hot, sunny days, ozone levels tend to peak in the afternoon, so mornings are often a better choice.
- On days when air quality is poor, run on a treadmill indoors or choose a lighter activity.
Heat and Safety
In hot weather, run during cooler parts of the day, drink water before and after your run, and slow your pace. If you run outdoors in low light, wear bright or reflective clothing, and stay aware of traffic.
When to Check With Your Doctor First
Running is safe for most healthy adults. But talk with your doctor before you start if you have heart disease, high blood pressure, diabetes, joint problems, or another chronic condition, if you’re pregnant, or if you’ve been inactive for a long time. Stop and seek medical help right away if you have chest pain, severe shortness of breath, or dizziness while running.
Frequently Asked Questions
How many minutes a day should I run to see benefits?
Even a little helps. Research has found that running just 5 to 10 minutes a day at a slow pace is linked to a lower risk of death from heart disease. For general health, U.S. guidelines recommend at least 75 minutes of vigorous activity, such as running, per week, which you can split into 25 minutes three times a week.
Is running bad for your knees?
For most people, no. A large review found that recreational runners had a lower rate of hip and knee arthritis than sedentary people. Higher rates were seen only in elite runners training at very high volumes for many years. If you already have knee pain or arthritis, talk with your doctor or a physical therapist first.
Is it OK to run every day?
Experienced runners often run daily, but beginners should run every other day to give their muscles, tendons, and bones time to adapt. Increase how often you run gradually as your fitness improves.
Can running help me lose weight?
Yes. Running burns more calories per minute than many other activities and helps reduce body fat, including belly fat. For lasting weight loss, combine running with a balanced diet and strength training.
What is the best time of day to run?
The best time is whenever you can do it consistently. Mornings can be cooler and have better air quality in many cities, while some people feel stronger in the afternoon. If evening runs affect your sleep, finish vigorous workouts at least an hour before bed.
The Bottom Line
Running is an affordable, convenient, and highly effective form of exercise. Regular running is linked to a longer life, a healthier heart, better mood and sleep, stronger bones, and even healthier knees. Start slowly with a run-walk approach, build up gradually, listen to your body, and choose a pace you can sustain. Consistency matters far more than speed.
References
- Chakravarty EF, Hubert HB, Lingala VB, Fries JF. Reduced Disability and Mortality Among Aging Runners: A 21-Year Longitudinal Study. Archives of Internal Medicine, 2008;168(15):1638–1646.
- Lee DC, Pate RR, Lavie CJ, et al. Leisure-Time Running Reduces All-Cause and Cardiovascular Mortality Risk. Journal of the American College of Cardiology, 2014;64(5):472–481.
- Alentorn-Geli E, Samuelsson K, Musahl V, et al. The Association of Recreational and Competitive Running With Hip and Knee Osteoarthritis: A Systematic Review and Meta-analysis. Journal of Orthopaedic & Sports Physical Therapy, 2017;47(6):373–390.
- Harvard Health Publishing. Calories Burned in 30 Minutes for People of Three Different Weights.
- U.S. Department of Health and Human Services. Physical Activity Guidelines for Americans, 2nd Edition. 2018.
- AirNow. Air Quality Index.