Blistering heat: How soaring temperatures impact the brain
On Friday, across most of the country, the temperature is expected to exceed 77 degrees Fahrenheit. Meteorologists predict that this summer will be exceptionally hot and dry. These forecasts are concerning, as such conditions can impact our brain function and overall well-being.
Neurologist Dr. Steven Allder told the "Independent" that high temperatures can weaken cognitive abilities, including attention, short-term memory, and decision-making.
Allder explains that when the body overheats, resources are redirected from the brain to regulate body temperature, which can slow down thought processes and decrease mental clarity.
Prolonged exposure to heat or dehydration further impairs brain efficiency.
The hotter it is, the more aggressive
There is evidence that high temperatures can trigger a range of emotions.
Allder explains that levated levels of heat are associated with increased irritability, frustration, and even aggression.
This may result from disrupted sleep, discomfort, or heightened stress responses.
Warm weather can also have positive effects on the brain, primarily due to increased exposure to sunlight.
Sunlight stimulates the production of serotonin, which improves mood, sleep, and overall emotional balance, according to Allder.
Higher levels of vitamin D from sun exposure are also associated with better cognitive functioning.
Prolonged exposure to high temperatures can lead to systemic inflammation, oxidative stress, and vascular dysfunction, negatively affecting the brain. To protect brain health on hot days, it is essential to stay adequately hydrated. Even mild dehydration can impair cognitive functions.
Limiting time spent outdoors during the hottest hours, wearing lightweight clothing, and using fans or air conditioning can help maintain a safe body temperature.
