The Power Of The Sun

As we start the steady climb toward Spring, we ask, why does the sun feel so good?

The sun’s rays are made up of different types of UV light.  In particular UVA, UVB and UVC.  UVC is filtered by the atmosphere which only leaves UVA and UVB.  The majority of sunlight reaching us is UVA and it is this ray that is responsible for premature ageing of our skin, leaving sun spots.  On the other hand UVB is responsible for the burning of our skin and that sudden urge to reach for the Aloe Vera!  

Whilst there are clear detrimental effects of having too much UVA and UVB on our skin there are definitely significant benefits of making sure that we get enough.

There are two main reactions that happen when we are exposed to the sun.  

The most obvious one is that the sun’s rays (UVB) help us to make vitamin D.  The parts of our skin exposed to the sun immediately begin to ramp up the vitamin D manufacturing process from cholesterol and this is really important.  The majority of our sunlight exposure is usually on our face but the more surface area that is exposed to the sun the more vitamin D you can make.  In fact, it is estimated that just 30 minutes of midday sun produces 10,000-20,000 IU of vitamin D; of course, you must ensure that you don’t burn!

The second impact of the sun is the chemical changes in our brain.  When we are exposed to the sun our brain starts to release hormones, namely serotonin, which make us feel happier.  This release of serotonin improves our mood, increases happiness and improves feelings of well-being. 

So while it is important to always protect yourself from the harmful rays of the sun, remember that there are definitely some positives that come from a few minutes of sunbathing.  

Author: Dr. Adam Greenfield, Co-founder of WorkLifeWell | Doctor of Chiropractic | Wellness Specialist

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