High-intensity interval training (HIIT) is a type of workout that alternates brief periods of vigorous exercise with periods of moderate activity, or rest (recovery). For example, a person could run for 30 seconds and then walk for three minutes. The periods of vigorous exercise and periods of rest/recovery can vary, as can the intensity levels of both. This allows HIIT workouts to be very adaptable to each individual and their fitness levels. The popularity of HIIT has remained on the rise thanks to continued research supporting it as an efficient and effective way to get and stay fit. HIIT is an excellent way for you to improve your fitness level and health, but it does require pushing your body to a higher intensity, so take your level of fitness into account before starting. Consulting a doctor before beginning [...]