Anaerobic exercise is similar to aerobic exercise but uses a different form of energy — quickly and immediately. Anaerobic exercises include high-intensity interval training (HIIT), weight lifting, ...

Natasha Caleel Freutel is a health and fitness writer, personal trainer and licensed occupational therapist. She obtained her bachelor's degree in kinesiology and master’s degree in occupational ...

Exercise intolerance is the reduced ability of the body to perform strenuous activities. It happens when your body's responses to exercise don't achieve age and gender-appropriate levels. It's often ...