Sentences with phrase «by exposure to sunlight»

The study revealed that each cell in normal facial skin carries many thousands of mutations, mainly caused by exposure to sunlight.

Each cell in normal facial skin carries many thousands of mutations, mainly caused by exposure to sunlight.

These are generated in our body by its essential use of oxygen and on the skin by exposure to sunlight, airborne pollutants and some synthetic sunscreening agents.

Astrophysicist Carey Lisse of the University of Maryland compares them to «smoking parking lots» tortured by exposure to sunlight.

Because the circadian clock is calibrated by exposure to sunlight, Roenneberg suspects the many hours some kids spend holed up in their dark rooms could push the clocks even later — a pattern that may be more prevalent in industrialized societies.

First, natural vitamin D, which is found in small amounts in a few foods and produced in the body by exposure to sunlight, degrades quickly, while synthetic versions of vitamin D are less susceptible to breakdown.

Hyperpigmentation on the face or melasma can be accelerated by exposure to sunlight.

Nasal solar dermatitis: a skin disease of the nose and muzzle which is greatly affected by exposure to sunlight.

Such lightweight silk fabrics are prone to wear, and are also degraded by exposure to sunlight, as well hot temperatures and the abrasion and twisting that results from laundering.

Sunburn is redness, burning, and inflammation of the skin caused by exposure to sunlight.

Generally speaking, these can either be hereditary or environmental — i.e., cancer may either «run in the family» or can be caused by exposure to sunlight, radiation, or tobacco smoke.

Article by Denise Cooluris ND One very significant preventive measure that has been in the media quite a bit these last few years is Vitamin D. Vitamin D is attained through some food sources, but mainly by exposure to sunlight...