A lot of myths that have been around for decades are being busted currently, as science is advancing at a rapid pace, and one of these myths is that the healthiest time to get some sun is in the evening. First we need to determine whether you want to get a regular bronze or you want to get a dark tan while replenishing your vitamin D supplies. This will make quite a difference as in this post I’m going to talk about reconciling beauty and health. So, what is important here is being in the right place at the right time. Lying in the sun in your tiniest bikini in the afternoon is not going to get you any UVB radiation at all and UVB is the only wavelength that will produce vitamin D. There is a system that will help you determine the best hours for getting enough Ultraviolet B rays. What this system does is determine the angle of the sun as it relates to your specific location on the planet and the time of the year. There’s a software called the Sun Azimuth Table. If the sun is lower than 50 degrees above the horizon, the atmosphere will filter all the UVB which is responsible for causing your body to make Vitamin D from cholesterol. So, what you need to do is go to this website or any other one that does such calculations, for example the website of the U.S. Naval Observatory, if it opens from your location and enter the data requested: date, location coordinates, difference with Greenwich. After you’ve entered all this data, click Calculate and you’ll have the calculations. In your first column you’ll see the time and the third column (Altitude) will give you the angle of the sun. So you can see the time frame when the angle of the sun in relation to your location is above 50 degrees.
So, if it’s sunny and warm outside, but the angle of the sun is below 50 degrees, you can lie under the sun from dawn till dusk in your most minimalistic swimwear and still not get any UVB and therefore no Vitamin D supplies. It can even turn out harmful for you, as UVA wave-length intensity exceeds that of the UVB and therefore has a higher penetration capacity. Both UVA and UVB can cause tanning and burning, although UVB does so far more rapidly. UVA, however, penetrates your skin more deeply than UVB, and may be a much more important factor in photo-aging, wrinkles and skin cancers.
So, if you lie under the sun when the angle is not right, there are no health benefits, just risks.
Why not reconcile beauty and health? If you pick the correct hours then you’ll replenish your body with Vitamin D, which is very important, and you’ll get a tan at the same time.
Sunlight is also beneficial to your sight so if you’re not scared of getting wrinkles in your eye area, don’t cover your eyes with sun glasses.
This is all for today, hope you find all of this useful and more so, I hope you follow the sun angle table to get the most out of the time you spend under the sun. Don’t forget to share thoughts in the comments, and if there’s any particular health, beauty or style topic you’d like me to approach in my next post, I’d love to know!