Why men are at higher risk, experts explain

Notably, heatstroke deaths have risen amid heatwaves and extreme temperatures. The May 2026 report noted that in the 30-44 age group, 525 men died due to heatstroke, while the toll among those aged 45-59 was even higher at 577. However, female fatalities in the same age brackets were notably lower.

To verify if men are much more susceptible to heat strokes, we turned to experts.

Men may have a higher susceptibility to heatstroke due to a mix of physiological, behavioral, and occupational factors, said Dr Manjusha Agarwal, consultant, internal medicine, Gleneagles Hospital, Mumbai. “Men have higher muscle mass and basal metabolic rate, leading to greater heat production during physical activity. Although they sweat more, this is not always protective, especially in humid environments where sweat cannot evaporate effectively. Women, on the other hand, may have relatively better cutaneous vasodilation, allowing more efficient heat dissipation. Hence, men can suffer from heatstroke,” said Dr Agarwal.

Hormonal factors also contribute, with estrogen offering some protective effect on thermoregulation. Behaviorally, men are more likely to perform strenuous outdoor work or exercise in extreme heat, added Dr Agarwal.

Dr Sundar Krishnan, senior consultant, internal medicine, KIMS Hospitals, Thane, concurred and noted that a large number of outdoor workers in construction, transport, delivery services, factories, agriculture, and manual labour roles are men, which increases their prolonged exposure to high temperatures and dehydration. “Continuous physical activity under direct sunlight significantly raises the body’s internal heat load,” said Dr Sundar.

Here’s what the data says (ADSI report)

Historically, Dr Sundar noted that men have shown “higher rates of exertional heatstroke”, particularly during physically demanding work, military training, and sports. “However, experts believe this is influenced not only by biology but also by behavioural patterns and workplace culture. Men may be more likely to continue working despite exhaustion or avoid reporting symptoms early. At the same time, it is important to understand that heatstroke risk is highly situational. Women, especially elderly women, can be more vulnerable during passive heat exposure such as prolonged heatwaves, particularly due to age-related physiological changes and social factors that may limit access to cooling,” elucidated Dr Sundar.

There are several contributing factors beyond outdoor exposure. Dr Sundar noted that men are generally more likely to delay hydration, ignore early symptoms, or continue strenuous activity despite feeling unwell. “Many dismiss warning signs like dizziness, muscle cramps, fatigue, or headaches as routine tiredness. This delay can allow heat exhaustion to progress into heatstroke, which is a medical emergency.”

Traditional “push through it” attitudes during physically demanding work or sports can also increase the risk. In many cases, individuals continue exertion despite dehydration or overheating, which places severe stress on the body’s cooling system.

On the other hand, during prolonged heatwaves, women, particularly older women, may also face increased vulnerability due to reduced heat tolerance with ageing, lower cardiovascular reserve, and environmental or social factors that make cooling more difficult.

Can lifestyle habits increase the risk further?

Absolutely, affirmed Dr Sundar, adding that alcohol intake, smoking, high caffeine consumption, poor sleep, and inadequate water intake can worsen dehydration. “Outdoor workouts, sports activities, and gym sessions during peak afternoon heat can also place extra strain on the body. Many people underestimate how quickly fluid and electrolyte imbalance can develop in extreme weather.”

Skipping meals, crash dieting, excessive protein supplementation without adequate hydration, and lack of heat acclimatisation can also impair the body’s ability to cope with rising temperatures. “Individuals with obesity, diabetes, hypertension, heart disease, or those taking certain medications may face an even higher risk,” Dr Sundar mentioned.

What are the early signs of heatstroke that people should not ignore?

Persistent weakness, excessive sweating, nausea, dizziness, headache, muscle cramps, rapid heartbeat, confusion, or fainting are important warning signs. In severe cases, the body temperature rises sharply, and the person may become disoriented, stop sweating, develop seizures, or become unconscious. “Immediate cooling and urgent medical attention are critical at that stage,” shared Dr Sundar.

People should not treat these symptoms as “normal summer fatigue,” especially during ongoing heatwaves or periods of strenuous outdoor activity. Early intervention can prevent serious complications affecting the brain, kidneys, muscles, and heart.

How can people reduce the risk during extreme summer conditions?

Regular hydration is key, even before thirst develops. “People working outdoors should take frequent cooling breaks, avoid direct sun exposure during peak afternoon hours, wear loose and breathable clothing, and replenish electrolytes during prolonged sweating. Heat-related symptoms should never be ignored.”

Outdoor exercise should ideally be shifted to early morning or evening hours. “Proper sleep, balanced nutrition, limiting alcohol intake, and gradual heat acclimatisation are equally important. Elderly individuals, children, people with chronic illnesses, and those living in poorly ventilated environments should be monitored more carefully during heatwaves,” elaborated Dr Sundar.

Overall, heatstroke risk is not determined by gender alone. The combination of environmental exposure, physical exertion, hydration status, fitness, age, medical conditions, and behavioural habits ultimately determines vulnerability.

DISCLAIMER: This article is based on information from the public domain and/or the experts we spoke to. Always consult your health practitioner before starting any routine.