tan is your skins reaction to the damage
done by ultraviolet radiation.
from the sun also can be harmful to the skin,
increasing the risk of skin cancer and causing premature
In North America, the peak
hours of exposure to ultraviolet radiation
are between 10:00 A.M. and 3:00
The exposure to
ultraviolet rays increases at higher altitudes
and in regions where the ozone layer is thinner.
including certain antibiotics, can
increase a persons sensitivity to sunlight.
The chemicals in
some perfumes also can heighten sensitivity
Symptoms of sunburnsuch
as reddened skincan take
up to 24 hours to appear.