Why might some people be more susceptible to heat stroke?

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Physical Characteristics Certain physical characteristics can increase an individual’s risk of heat stroke. For example, a high body mass index (BMI) can reduce blood flow to the skin, making it more difficult for the body to cool itself. Additionally, people with a history of kidney disease or those who are dehydrated may not be able to sweat effectively, further exacerbating the risk of heat-related illnesses. A study published in the Journal of Applied Physiology found that individuals with a BMI of 30 or higher were more likely to experience heat-related illnesses.
Health Conditions Several health conditions can increase an individual’s risk of heat stroke. For instance, cardiovascular disease can impair the body’s ability to regulate blood flow, leading to heat-related illnesses. Diabetes can also increase the risk, as individuals with diabetes may experience nerve damage that affects sweat glands, making it more difficult for the body to cool itself. Furthermore, individuals with a history of heat-related illnesses or heat exhaustion may be at increased risk of heat stroke.
Medications and Other Factors Certain medications, such as diuretics, can increase the risk of heat-related illnesses by reducing blood volume and impairing the body’s ability to regulate temperature. Additionally, individuals who are taking certain medications for other conditions, such as beta-blockers, may also be at increased risk. Other factors, such as poor air quality, high humidity, and lack of acclimatization to hot environments, can also increase the risk of heat stroke.