Heat-Related Deaths on the Rise Globally, Says Medical Expert

COLOMBO (News 1st); Specialist Physician Dr. Nandana Dickmadugoda has warned that rising temperatures pose a significant threat to public health, stressing that extreme heat can lead to serious illnesses and even death if adequate precautions are not taken.

Speaking on the growing concerns surrounding high temperatures, Dr. Nandana Dickmadugoda noted that health authorities and meteorological officials have repeatedly highlighted the risks associated with heat exposure and the measures the public should adopt to protect themselves.

He explained that humans are "homeothermic" organisms, meaning the body is capable of maintaining its temperature within a narrow range, typically around 36 degrees Celsius, regardless of changes in the surrounding environment.

According to the specialist, this regulation is controlled by a part of the brain known as the hypothalamus. Unlike reptiles and certain other animals, whose body temperatures fluctuate according to environmental conditions, the human body constantly works to maintain a stable internal temperature.

Dr. Nandana Dickmadugoda said this is why prolonged exposure to extreme heat is a serious concern, as it places significant stress on the body's natural temperature-control mechanisms.

Highlighting the global impact of heat-related illnesses, he noted that data from the World Health Organization indicates that approximately 175,000 people die each year due to heat-related health complications.

He further pointed out that in England alone, around 2,870 deaths were recorded in 2026 due to illnesses linked to extreme heat.

The specialist emphasized that heat-related illnesses now account for more deaths than those caused by extreme cold in several parts of the world, making heat exposure an increasingly important public health challenge.

He urged the public to remain vigilant, stay adequately hydrated, avoid prolonged exposure to direct sunlight during peak hours and closely follow health and weather advisories as temperatures continue to rise.