Scientists Investigate How Heat Waves Alter Brain Function

Scientists are investigating the causes behind the impact of record-breaking heat waves on brain function. Recently, the UK recorded a June high of 36.1°C, significantly exceeding the average June maximum temperature of 19°C. Research indicates that such extreme heat may be linked to thousands of deaths across Europe.

Researchers, including cognitive psychologist Catherine Thompson, acknowledge the difficulty in directly studying the effects of rising temperatures on people's thinking abilities. In an experiment involving firefighters, they observed difficulties in concentration and attention control following 15 minutes of intense heat exposure. The research team reported that firefighters' concentration and attention control abilities returned to normal after a 20-minute cooling period post-heat exposure.

Rising temperatures also negatively affect mental health. A 2023 study by Oxford University researchers analyzed the link between rising temperatures and mental health outcomes, revealing a 9.7% increase in hospital admissions for related conditions during heat waves. The researchers explained that individuals with mental health conditions are vulnerable to the physical effects of heat, and the risk of death for schizophrenia patients can increase up to threefold during heat waves.

These impacts can be particularly fatal for vulnerable groups, such as outdoor workers and individuals with mental health conditions. The scientific community is continuing its efforts to reduce social and personal risks by understanding how heat waves affect brain function. This could lead to the development of concrete measures to protect outdoor workers, the elderly, and vulnerable populations experiencing mental health challenges.