The sun is a great ally of the human organism, but also a source of risks. Let's look at the beneficial and harmful effects on some skin diseases
The sun contributes to the good mood and well-being of people and gives a good dose of vitamin D, essential for the absorption of calcium and bone care; moreover, ultraviolet rays assist the treatment of some skin diseases. But overall, the list of beneficial effects is rather limited compared to the harmful ones. Unfortunately, the sun can in fact cause many problems, such as sunburn, heat stroke, eye disease, premature aging, blemishes and skin cancer. Our relationship with tanning is therefore made of love and hate.
The parent star of the solar system can become both our best friend and our worst enemy. It is therefore essential to know all the risks starting from skin diseases that fear tanning. Acne can benefit but also worsen, especially with regard to skin with clear skin types. The sun is forbidden for those who suffer from couperose and rosacea: it is essential to use total sun protection and cover yourself with glasses and hats. The sun, by contrast, helps treat psoriasis, eczema and vitiligo.
In order to safeguard one's health, it is then necessary to dispel some false myths that circulate about the effects of the sun. Tanning does not protect from the sun, but causes premature aging of the skin, as well as wrinkles and dark spots. Secondly, water and clouds do not prevent sunburn, as water reflects up to 50% of ultraviolet rays and clouds allow 90% of the rays to filter through. An important chapter concerns protection: sunscreen must always be reapplied every two hours, regardless of the SPF index.
In this regard, it should be noted that some filters absorb only UVB rays (responsible for cancer), while others only UVA rays (responsible for aging); some, however, absorb both. To be more protected, however, it is better to expose yourself before 11 and after 16, wear a hat and sunglasses, stay in the shade during the hottest hours, apply sunscreen on the skin and lips and check that the drugs taken (antibiotics, diuretics , laxatives, supplements, cortisone, etc.) do not increase the sensitivity of the skin to the sun.