From 1962 when the first SEAL teams were commissioned, to present day, Navy SEALs have distinguished themselves as an individually reliable, collectively disciplined and highly skilled maritime force. Because of the dangers inherent in NSW, prospective SEALs go through what is considered by many military experts to be the toughest training in the world. During this 26-week Navy SEAL Challenge Training Program, you will perform one LSD (Long Slow Distance), one CHI (Continuous High Intensity [short]), and one INT (Interval) workout for running and swimming each week. In addition, you will perform calisthenics, core exercises and flexibility training 4-6 days per week. The Navy SEAL Challenge is a demanding training program and you should consult a physician before beginning this program.