Why Are Some People More Prone to Heatstroke?

Jul 16, 2025 Source: Cainiu Health
Dr. Yang Ziqi
Introduction
Some people are more prone to heatstroke, which is generally related to weaker body temperature regulation ability, insufficient hydration, existing health conditions, poor environmental adaptability, and inappropriate behavioral habits. The body's temperature regulation system functions suboptimally, making it unable to quickly respond to changes in external temperature. Under high-temperature conditions, an imbalance between heat production and dissipation can easily lead to heat accumulation in the body, triggering symptoms of heatstroke.
Some people are more prone to heatstroke, which is generally related to weak body temperature regulation, insufficient water intake, underlying health conditions, poor environmental adaptation, and inappropriate behavioral habits. If any abnormalities occur, prompt medical attention is recommended. Detailed explanations are as follows:

1. Weak thermoregulation: Poor function of the body's temperature regulation system makes it difficult to respond quickly to changes in external temperatures. In high-temperature environments, heat production and dissipation become imbalanced, leading to heat accumulation in the body and triggering heatstroke symptoms. 2. Insufficient water intake: Drinking too little water daily or failing to replenish fluids after sweating leaves the body in a dehydrated state, reducing sweat production and impairing the efficiency of heat dissipation, thereby increasing the risk of heatstroke in hot environments. 3. Underlying health conditions: Conditions such as cardiovascular and metabolic diseases can impair blood circulation and the body's ability to dissipate heat. In high temperatures, the body's workload increases, making heatstroke more likely. 4. Poor environmental adaptation: Individuals who spend prolonged periods in air-conditioned environments may struggle to adapt quickly when suddenly entering a hot environment, resulting in inadequate heat tolerance and an increased likelihood of heatstroke. 5. Inappropriate behavioral habits: Engaging in outdoor activities for extended periods during peak heat hours or wearing heavy, non-breathable clothing increases internal heat production and hinders heat dissipation, raising the risk of heatstroke. Individuals prone to heatstroke should monitor their condition closely, reduce outdoor exposure during hot weather, stay adequately hydrated, and wear breathable clothing. If symptoms such as dizziness or fatigue occur, immediately leave the hot environment and rest. If symptoms persist or worsen, seek medical attention promptly.

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