Taiwan braces for 35C heatwave; doctor warns of 'heat injury to the brain'

Taiwan is bracing for a week of intense heat, with temperatures expected to reach 35 degrees Celsius and possibly higher in certain regions. Health experts are urging the public to take precautions against heatstroke and its severe effects on the brain. Dr. Huang Hsuan, a specialist in thoracic and critical care medicine, highlighted that extreme temperatures can disrupt blood flow and nerve transmission in the brain, impairing cognitive functions such as attention, memory, and decision-making. When the body struggles to dissipate heat, a rising core temperature can lead to "heat delirium" and confusion.

Dr. Huang identified four groups particularly susceptible to heat-related brain injury: the elderly, whose cerebral blood flow regulation declines with age; young children, whose thermoregulation systems are still developing; individuals with a history of hypertension, diabetes, or heart disease; and those who work outdoors or in poorly ventilated spaces for extended periods. These individuals have a lower tolerance for heat and are more prone to dangerous symptoms like disorientation and incoherent speech.

To mitigate these risks, Dr. Huang recommended five key strategies. First, he advised keeping the head cool by wearing breathable clothing and applying cool compresses to the neck and forehead. Second, he stressed the importance of staying hydrated by drinking plenty of water while limiting alcohol consumption, as alcohol can increase dehydration. Third, individuals should seek refuge in air-conditioned environments for at least 10-15 minutes every hour. Fourth, it is crucial to avoid strenuous activities during the hottest parts of the day, typically between 11 a.m. and 3 p.m. Finally, he urged people to be vigilant for any unusual physical symptoms, such as headaches or dizziness, and to seek immediate cooling and medical attention if they occur.