A study finds higher intensity exercise helps relieve anxiety.
I am a huge proponent of high-intensity exercise, especially short, sharp high-intensity training like sprint intervals of 30 seconds or less because it's like powerful medicine.
Sprint interval training (SIT) fires up your fast-twitch muscle fibers, which are those quick burst, high-energy fibers that generally sit on the sidelines during endurance exercise. (They’re the first to go with disuse and age.) SIT training also strengthens and increases the amount of your energy-producing mitochondria, improves insulin sensitivity, and trains your body to burn more fat for energy when you’re not exercising. Research shows SIT also helps increase lean muscle mass, as well as improve power and cardiovascular fitness.
