PREVENTING HEAT INJURIES
Some of the preventive medicine measures (PMM) for protection against heat
injuries are given below.
a. Drink sufficient amounts of water. Your body needs a minimum amount of
water for cooling, waste elimination, and metabolism. Any attempt to train the body to
use less water can be harmful and may lead to heat injuries.
(1) Hourly fluid intake should not exceed 1 quarts of water every hour.
Daily fluid intake should not exceed 12 quarts. If your urine is dark yellow, you are not
drinking enough water.
(2) Fluid intake needs will vary depending on type of work and temperature.
See Table 9-1 for recommended fluid intake based upon the wet bulb, globe,
temperature (WBGT) index and work performed.
(3) Drink extra water before combat operations. Being well hydrated will
help you to be physically strong and mentally sharp.
Maintain excess water in your system for strength and alertness.
(5) Protect yourself from dehydration and heat injuries associated with
wearing full chemical protective gear.
b. Rest whenever possible.
(1) Take rest breaks in accordance with the heat condition table (table 9-1)
as the tactical situation permits.
Use rest breaks to drink water and to cool off. If possible, rest in a
c. Eat regular meals daily to replace salt lost through heavy sweating. Eat
something at each meal, even if you are not hungry.
Usually, eating field rations or liberal salting of the garrison diet will provide
enough salt in your diet. Excess intake of salt should be avoided.
d. Protect yourself from exposure.
Wear your uniform properly (loose-fitting).
Work in the shade whenever possible.
Use barrier creams and lotions.