The Science of Excercise

The 4 Types of Exercise You Need to Be Healthy

When you think of exercise, you may imagine strenuous activities such as running or biking — the ones that make you breathe hard, turn flush and drip with sweat. But aerobic activity is only one type of exercise, and although it is critical for boosting fitness, there are actually three other types of exercise that are also important: strength training, balance training and flexibility training.

Rachael Rettner
Contributor

Rachael is a Live Science contributor, and was a former channel editor and senior writer for Live Science between 2010 and 2022. She has a master's degree in journalism from New York University's Science, Health and Environmental Reporting Program. She also holds a B.S. in molecular biology and an M.S. in biology from the University of California, San Diego. Her work has appeared in Scienceline, The Washington Post and Scientific American.