Skin-Sun-Cancer

It is known that excessive exposure to the sun is a source of skin cancer, however, avoiding exposure is harmful to health.

A study conducted on submariners, who spend most of their time without sun exposure, showed that they had more skin cancers than sailors who remained on the surface and were exposed to the sun.

Skin cancer decreases in populations as one approaches the tropics and the equator.
In France, the regions least accustomed to the sun experience a large number of melanomas…
The progression of this disease in France was 5.9% per year for men and 4.3% for women during the period 1978-2000.
Regular and moderate exposure to the sun is not harmful, unlike sudden, massive and irregular exposures, especially for people who are not used to it or who have sensitive skin.
Be careful, therefore, of sudden sunburns on unprepared skin.
Repeated sunburns, especially in childhood, and fair-skinned people are an aggravating factor.

A third of melanomas develop from moles. These are rarely serious when they are raised and have a hair.

To check the danger of a mole, use the ABCD rule, namely:
A for asymmetry, B for borders, C for colour and D for diameter.

It is preferable to consult a dermatologist if the mole is not rounded with regular borders, if its diameter is greater than 6 millimetres and if it presents different colours.

The risk of cancer decreases when the vitamin D level in the blood is high.
This vitamin indeed helps to fight against the proliferation of cells.
Vitamin D is synthesised from cholesterol under the effect of the sun’s ultraviolet B rays.
Sun exposure is therefore useful and the permanent use of total sunblock that blocks UVB can prove harmful.
It is therefore necessary to expose oneself to the sun briefly (15 to 30 minutes), as often as possible, offering as much surface as possible and preferably at midday.
In winter, despite outdoor activities, vitamin D synthesis is insufficient because the wavelength of UVB in France is too low.
Supplementation with vitamin D is therefore important.
The use of tanning booths could prove interesting but unfortunately current regulations require devices delivering very little UVB. Tanning booths are therefore not very effective for a significant risk…

The natural solution of our solar star therefore remains the best on condition of not falling into excess.