What is the main consequence of taking over the counter medications during heat stress?

Taking over-the-counter medications during heat stress can significantly impair the body's ability to handle heat effectively. Certain medications can affect thermoregulation, increase the risk of dehydration, or alter the way the body responds to heat stress. For instance, some pain relievers and antihistamines can cause drowsiness or dry out mucous membranes, rendering it more difficult for the body to cool itself through sweating. As a result, individuals may become more susceptible to heat-related illnesses, such as heat exhaustion or heat stroke, as their bodies struggle to maintain a safe internal temperature. Understanding this risk is crucial for maintaining health and safety in hot environments, particularly for military personnel who may be engaged in strenuous activities.