Too much ultraviolet radiation is dangerous for human health. Excessive exposure can cause skin ageing and sunburn and can induce melanoma, cataracts, ocular melanoma, and immunodeficiency.
The food we eat influences our bodies’ immune responses to infection. So focusing on nutrition is one thing we can do to help protect ourselves in the face of the coronavirus threat.
Vitamin D is essential for good health and particularly for fighting infections and keeping the microbes in the human gut healthy. But in winter it can be difficult to get enough.
UV ratings indicate risk of skin damage – but they’re based on pale skin. New wrist bands designed for six different tones of skin provide a more personalised way to track safe UV exposure.
There’s some logic in eating and avoiding certain foods if you have endometriosis. And there are some studies that confirm this logic, but then others seem to refute it. And everyone is unique too.
Kids need to play outside for a number of reasons, but there may even be benefit for their eyes. Here’s how sunlight helps prevent nearsightedness, or myopia.