The Sun's Heat and Its Rays Strike Separately
As temperatures rise during the summer months, both the sun’s heat and its harmful rays can lead to serious health problems and even life-threatening risks. Experts emphasize that spending long periods of time in the sun can be dangerous even when it’s not extremely hot, and that ultraviolet rays can have adverse effects on the brain.
It is noted that high temperatures lead to excessive sweating, which in turn causes fluid and mineral loss; and that fluid loss can lead to low blood pressure.
Be Careful of Sunstroke and Heat Exhaustion
If systolic blood pressure drops below 70 mmHg, it can prevent the brain from receiving enough oxygen and lead to fainting. This condition can occur as a result of heatstroke. People with chronic health conditions, children, and older adults are more susceptible to this risk.
When exposed to direct sunlight, the situation can become even more severe. It is reported that ultraviolet rays can disrupt the body’s temperature regulation by affecting the central mechanism responsible for maintaining thermal balance. When this mechanism—which normally regulates body temperature through sweating and evaporation—is impaired, the body is unable to cool itself. Rising body temperature combined with dropping blood pressure can lead to fainting. If the person who fainted has dry skin and a high fever, this is considered a significant indicator of heatstroke. In severe cases, prolonged loss of consciousness can result in coma and life-threatening complications.
High-Risk Groups Should Be More Careful
People with chronic conditions such as cardiovascular disease and high blood pressure, as well as children and the elderly, are particularly vulnerable to heat and sunstroke. It is recommended to avoid direct exposure to the sun, especially between 11:00 a.m. and 3:00 p.m. Lightweight, cotton, and breathable clothing should be worn; heavy, greasy, and fried foods should be avoided. Throughout the day, sufficient amounts of fluids such as water, mineral water, yogurt drink, and fruit juice should be consumed, and a lukewarm shower should be taken to cool off.
Experts remind us that spending long periods of time in the sun can pose risks even on days when it isn’t extremely hot, and stress the need to be cautious about the negative effects of ultraviolet rays on brain health.