Remember the ROYGBIV colors of the rainbow, and notice that
the last color visible to us is V which is violet. And Ultraviolet Rays or UV
rays, are rays beyond violet that our naked eyes cannot see anymore. Some
animals can see them but generally humans cannot see, and is commonly regarded
as bad for one’s health when over exposed to these rays.
SUNBURN
Whenever you go to a beach and get exposed to sunlight during
swimming or even just walking outside, you sometimes notice that patches of
your skin that were exposed are peeled. This is because of the ultraviolet ray,
specifically UV B rays. This UV ray penetrates your skin and kills the cells
which are now the visible peeling you can see.
TANNING
Tanning is the
darkening of the skin color due to exposure to sunlight. Most Caucasians go to
the beach and get tanned to make them look darker but people from the tropics
are already tanned so they avoid getting tanned. The pigment melanin responsible
for the darkening of one’s skin; the more melanin you have, the darker your
skin will be.
Getting exposed too much from the sun is bad for one’s
health but keep in mind that Vitamin D is synthesized by the sunlight and is
therefore important to have a little exposure to sunlight.
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