During winter the sun is a rare sight and even when you see it it’s not that warm or hot. The days are shorter followed by cold nights. You have obviously made sure that you take hid of skincare tips for winter. What you might have taken lightly is the use of sunscreen. Although in the winter UV rays are reduced, it is still important to use sunscreen daily and here’s why.
1. The Earth is closest to the sun in the middle of the winter.
In the northern hemisphere, we’re closest to the sun about two weeks after the winter solstice.
2. The ozone layer is the thinnest during the winter.
The ozone layer acts like the Earth’s sunscreen.It filters out and protects us from harmful UV rays. During winter months the ozone levels are very low hence thinning out.
3. Your perceived intensity of the sun does not indicate your sun exposure.
There are two kinds of ultraviolet rays emitted from the sun: UVA and UVB. UVA rays have the same intensity during summer and winter. These rays penetrate deeper in your skin and can cause skin aging and skin cancer to occur.
4. UV rays penetrate glass.
While UVB rays are mostly blocked by glass and clouds, 50 to 60 percent of UVA rays go right through windows.
5. Clouds outside aren’t equivalent to lack of exposure to UV rays.
According to research up to 80 percent of the sun’s UV rays can pass through clouds.