Energetic or tiring? Discovery of dual effect of sunlight on health. lifestyle news

The impact of sunlight on our health cannot be underestimated. However, it becomes paramount to understand how sunlight affects our energy levels and overall well-being during this time Scorching summer days.

Dr RR Dutta, HOD, Internal Medicine, Paras Health, Gurugram explains, “Exposure to sunlight triggers the secretion of a hormone called serotonin in the brain. While serotonin is often associated with mood regulation, it also plays a role in promoting alertness.

However, prolonged exposure to sunlight can trigger the secretion of another hormone, melatonin, which is responsible for regulating the sleep-wake cycle. Melatonin surges can make you nervous feeling sleepy or tired,

Effect of sunlight on the body's circadian rhythm

Sunlight, especially in the morning, helps synchronize our internal body clock, or circadian rhythm, with the external environment.

Sunlight, Health, Energy Levels, Circadian Rhythms, Fatigue, Sleep, Heat, Vitamin D, Seasonal Affective Disorder (SAD), Sleep Disorders Overexposure at the end of the day can disrupt this rhythm, causing a feeling of fatigue (Source: Freepik)

“When sunlight hits the retina, it sends signals to the suprachiasmatic nucleus (SCN) of the brain, which releases hormones like cortisol (to wake you up) and melatonin (to promote sleep),” says Dr. Dutta. Controls the production of. Exposure to sunlight in the morning helps suppress melatonin production, keeping you awake and alert during the day.

However, overexposure at the end of the day may break this rhythm“That creates a feeling of fatigue,” he said.

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Individuals may vary in their sensitivity to sunlight-induced fatigue due to differences in circadian rhythms or hormone levels. “People with certain medical conditions, such as seasonal affective disorder (SAD) or sleep disorders, may be particularly prone to feeling tired after sun exposure,” says Dr. Dutta.

Health problems that can increase feelings of fatigue

Dr. Dutta mentions that SAD, Chronic fatigue syndrome, or vitamin D deficiency, can increase feelings of fatigue. after sun. Additionally, certain medications or treatments may increase sensitivity to sunlight and contribute to fatigue.

Lifestyle adjustments that can help reduce fatigue

To combat fatigue caused by sun exposure, Dr. Dutta recommends maintaining a regular sleep schedule and ensuring adequate exposure to natural light, especially in the morning. In cases of vitamin D deficiency, supplementation may be necessary under medical supervision. Additionally, staying hydrated and protecting the skin from excessive sun exposure with sunscreen and protective clothing are essential practices.

As we enjoy the warmth of the sun this summer, let us be mindful of its profound effects on our health and well-being. By understanding how sunlight affects our circadian rhythms and taking proactive measures to reduce fatigue, we can harness its benefits while protecting our vitality.

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First uploaded to: 19-05-2024 09:27 IST

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