The Hidden Dangers of Hot Nights: Understanding Heatwave Health Risks
Not just hot days, hot nights are the real problem: Why heatwave health impact and risk increases after sunset
The Economic Times
Image: The Economic Times
As India faces intense heatwaves, health experts warn that high night temperatures can exacerbate health risks. Continuous exposure to heat, even after sunset, disrupts the body's recovery process, leading to increased risks of dehydration, sleep disturbances, and chronic health issues, particularly in urban areas.
- 01Nighttime heat poses serious health risks, disrupting the body's cooling mechanisms.
- 02Prolonged exposure to high temperatures can lead to dehydration and severe health complications.
- 03Research shows that hot nights increase mortality risk, particularly from strokes and chronic conditions.
- 04Urban areas are more vulnerable to heat due to the urban heat island effect.
- 05Climate change is causing nighttime temperatures to rise faster than daytime temperatures.
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India is currently experiencing severe heatwaves, with temperatures in Akola, Maharashtra, nearing 47 degrees Celsius. The India Meteorological Department (IMD) warns that these conditions will persist, prompting health experts to advise precautions against heat-related illnesses. However, the risks extend beyond hot days; hot nights can prevent the body from cooling down, leading to increased stress and health complications. Studies from the National Institutes of Health (NIH) indicate that high night temperatures are linked to a higher mortality risk, particularly for strokes, and can disrupt sleep quality. Urban areas are especially affected due to the urban heat island effect, where buildings and infrastructure retain heat. With climate change exacerbating both daytime and nighttime temperatures, experts emphasize the need to manage heat exposure at all times, not just during the day.
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The rising temperatures, especially at night, can lead to increased health risks for residents, particularly affecting sleep quality and overall well-being.
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