Final answer:
To prevent heat stress and stroke, it is not effective to wear a loose-fitting hat. Decreasing training intensity, avoiding exercise during peak hours, and allowing adaptation to a hot environment are effective measures.
Step-by-step explanation:
An effective way to prevent heat stress and stroke is to decrease training intensity if the conditions are hotter than normal. This helps to prevent excessive strain on the body during exercise. Another effective measure is to avoid exercising between 11 a.m. and 5 p.m. when the sun's rays are at their strongest and the temperature is hottest.
Allowing one to two weeks to get used to a hot environment is also an effective way to prevent heat stress and stroke. This gives the body time to adapt to the increased heat and humidity, reducing the risk of heat-related illnesses. However, wearing a loose-fitting hat is not an effective way to prevent heat stress and stroke.
Learn more about Heat stress and stroke prevention