Which statement is true about heat stress?

Which statement is true about heat stress?

• A. Lack of sweat is a symptom of heat stroke.
• B. Rapid heartbeat indicates dehydration only.
• C. Heat stroke is not dangerous if cooled immediately.
• D. Sweating is always intense in heat stroke.

Answer: (A)

Heat stroke happens when the body's cooling system fails and body temperature rises to dangerous levels. A key indicator is little or no sweating, because the body can no longer regulate heat effectively. This is why the statement that lack of sweat is a symptom of heat stroke is true. Other points to keep in mind: a fast heartbeat can occur with heat-related illness but isn’t exclusive to dehydration; heat stroke is dangerous even with rapid cooling and requires emergency care; and sweating isn’t consistently present or absent in heat stroke—some cases have sweating, others don’t, depending on how the body's cooling mechanism is functioning.

Heat stroke happens when the body's cooling system fails and body temperature rises to dangerous levels. A key indicator is little or no sweating, because the body can no longer regulate heat effectively. This is why the statement that lack of sweat is a symptom of heat stroke is true.

Other points to keep in mind: a fast heartbeat can occur with heat-related illness but isn’t exclusive to dehydration; heat stroke is dangerous even with rapid cooling and requires emergency care; and sweating isn’t consistently present or absent in heat stroke—some cases have sweating, others don’t, depending on how the body's cooling mechanism is functioning.