What is an anaerobic exercise and how does it differ from aerobic exercise?

Anaerobic exercise is a type of physical activity that does not require oxygen to produce energy. It is typically high-intensity and short in duration, such as Weightlifting or sprinting. Aerobic exercise, on the other hand, relies on oxygen to fuel the body during longer, moderate-intensity activities like running or cycling. The main difference is the way the body generates energy during the exercise.