“Metabolism” is the name of the bodily system that converts food calories to energy needed to perform various tasks, like pumping oxygen to muscles during a long walk. Many variables contribute to your metabolism, including heredity, gender, and age. But you can quicken yours; here’s how.
When you walk, run, or lift weights, you increase the energy required of your body, which raises your metabolism then, and for hours afterward. “It’s not a huge spike, but it makes a difference,” says Gary Miller, PhD, associate professor of health and exercise science at Wake Forest University in Winston-Salem, North Carolina.