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Most people in the world depend on the sun to get vitamin D, [31] and elderly populations in low UVB countries experience higher rates of cancer. [32] There are not many foods that naturally have vitamin D. [33] Examples are cod liver oil and oily fish. If people cannot get sunlight, then they will need 1,000 IU of vitamin D per day to stay ...
Light therapy, also called phototherapy or bright light therapy is the exposure to direct sunlight or artificial light at controlled wavelengths in order to treat a variety of medical disorders, including seasonal affective disorder (SAD), circadian rhythm sleep-wake disorders, cancers, and skin wound infections.
Allowing pet cats to lick open wounds can cause cellulitis [53] [54] and sepsis [55] [56] due to bacterial infections. Licking of open wounds by dogs could transmit rabies if the dog is infected with rabies, [57] although this is said by the CDC to be rare. [58] Dog saliva has been reported to complicate the healing of ulcers. [59]
Cellulitis in 2015 resulted in about 16,900 deaths worldwide, up from 12,600 in 2005. [8] Cellulitis is a common global health burden, with more than 650,000 admissions per year in the United States alone. In the United States, an estimated 14.5 million cases annually of cellulitis account for $3.7 billion in ambulatory care costs alone.
Photodermatitis, sometimes referred to as sun poisoning or photoallergy, is a form of allergic contact dermatitis in which the allergen must be activated by light to sensitize the allergic response, and to cause a rash or other systemic effects on subsequent exposure.
Coal tar causes increased sensitivity to sunlight, [55] so skin treated with topical coal tar preparations should be protected from sunlight. The residue from the distillation of high-temperature coal tar, primarily a complex mixture of three or more membered condensed ring aromatic hydrocarbons , was listed on 13 January 2010 as a substance of ...
Rikli proposed various therapies, most of which were based on exposing the body to water, air, and sun. Called sun tanning, it was preferable for these therapies to be done while naked. His healing was founded on swimming in cold water, sun tanning, and walking. His famous quote was: "Water is good, air is better and most of all the sunlight". [2]
Though toxicity of silver is low, the human body has no biological use for silver and when inhaled, ingested, injected, or applied topically, silver can accumulate irreversibly in the body, particularly in the skin, and chronic use combined with exposure to sunlight can result in a disfiguring condition known as argyria in which the skin ...