08-07-2025
What are the Health Benefits of Sunshine?
Q: I've heard two conflicting things about sun exposure — that you should avoid it and that it's good for you. What should I believe?
For decades, many doctors have said that less is more when it comes to sun exposure. Ultraviolet light from the sun can age the skin and cause skin cancer, and people can get vitamin D from food or supplements instead.
But in recent years, some scientists have questioned this thinking after research suggested that moderate sun exposure may, at least in certain contexts, have some benefits. And that vitamin D supplements may not always be a good substitute.
'The 'never go outside without S.P.F. 50' approach treated sun exposure as if it were universally harmful,' said Dr. Lucy McBride, an internal medicine physician in Washington, D.C. But 'moderate, thoughtful sun exposure,' in accordance with your risk factors, she added, 'may offer benefits we're still discovering.'
Sunshine has a bright side.
It's undeniable that the sun's rays can damage your skin in ways that result in premature skin aging and cancer, said Dr. Elizabeth Ko, an internal medicine physician at UCLA Health who has written about the health effects of sun exposure.
But researchers have also identified a handful of potential, if limited, associations between sun exposure and health benefits.
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