Airmen and Soldiers practice breathing and relaxation during their off duty time in a deployed location. Stress can take its toll on your mental and physical health, including your heart health, but there are breathing techniques to buffer yourself from it. (U.S. Air Force photo by Master Sgt. Lance Cheung)

This instruction reissues DoD Directive (DoDD) 1010.10 (Reference (a)) as a DoD instruction (DoDI) in accordance with the authority in DoDD 5124.02 (Reference (b)) to establish policy and assign responsibilities for health promotion and disease prevention in accordance with References (c) through (f).