You shouldn’t avoid sunscreen – but there are benefits to UV radiation, according to Professor Luke O’Neill.
People have known “for decades” that sunlight and UV rays increase the risk of melanoma – and of course, sunburn.
While it’s still important to protect against these conditions, UV radiation might not be as completely terrible as people think., Professor Luke O’Neill explained a person’s skin is responsible for making vitamin D – and sunlight creates more vitamin D. “UV hits off your skin, turns cholesterol, interestingly, into vitamin D,” he said. “You're lowering cholesterol, and the vitamin D gets made.”Vitamin D – and therefore UV – can also aid heart function – although Prof O’Neill said scientists are not yet sure why.
“Because vitamin D is good for your immune system, it might clear the plaque in your heart or clear cholesterol is one kind of notion that I think is there,” he said.“You're making a natural dilator, we call this, in your heart, and therefore the blood flow increases,” Prof O’Neill.It goes into your blood - it dissolves into the blood and then eventually ends up on the heart, which is strange.
“High-level UV is bad, gives you sunburn and so on – Low-levels get through and then you can still make some vitamin D and that might be giving you the beneficial effects.Paediatric surgeon shortage: ‘We need to futureproof for children’
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