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Optimal performance is critical in any environment—whether you’re working in extreme thermal conditions, performing at altitude, diving, or operating drones for long hours behind a computer screen. These conditions place exceptional demands on physical and mental fitness. If you can't find the answer to your Environment question in our resources, use our Ask the Expert button below to send us your question.


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Environment Resources


Information on surviving and performing in hot environments.


Information and awareness on policies, reports and guidelines for performing well in high altitude.


All services in the Department of Defense have personnel actively involved in diving operations. This section will address the issues of how to approach, manage and prevent diving illness and injuries.


Aviation manuals, training programs, and educational links across all branches of the military.


Gear has to be up to performance challenges if Warfighers are to be well-protected in their environments.


Information on surviving and performing in hot environments.


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Prevent altitude sickness
Altitude sickness can affect your performance. Learn about what happens to your body and how to look for warning signs.

Environment News

Too sick to exercise?
Feeling under the weather? Find out when bed rest is best—or when it’s safe to sweat it out.
Chill out and keep moving!
You don’t have to hibernate during the colder months. Exercising in the cold takes a little extra planning to stay safe and comfortable.
Unmasking high-altitude training
Should you be using your Pro Mask for altitude training?
Blue light’s bright and dark sides
What is “blue light,” and how does it affect you?
Running: indoors or outdoors?
Learn about the pros and cons of running indoors versus running outdoors, especially now that colder weather is coming on.

All Environment Blog Entries