Skip to main content
USA Flag An official website of the United States government
Official websites use .mil
A .mil website belongs to an official U.S. Department of Defense organization.
Secure .mil websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .mil website. Share sensitive information only on official, secure websites.
attention icon
Lapse in Federal Appropriations
The most recent appropriations for the Department of War expired at 11:59 p.m. EST on September 30, 2025. Military personnel will continue in a normal duty status without pay until such time as a continuing resolution or appropriations are passed by Congress and signed into law. Civilian personnel not engaged in excepted activities will be placed in a non-work, non-pay status. Visit www.dha.mil/shutdown for more information.
U.S. Army
Research Institute of Environmental Medicine

Thermal & Mountain Medicine Division

The Thermal and Mountain Medicine Division conducts research to sustain and enhance Warfighter performance and minimize medical risk associated with military operations at environmental extremes, including hot, cold, high-terrestrial altitude and multifactorial environments. TMMD research supports military materiel developers of clothing, equipment and food.

Research Areas

Heat Stress

Cold Stress

High Altitude

Pathophysiology

Multifactorial Environments

Last Modified Date: 3/6/2025