Risks and benefits of sun exposure
RISKS AND BENEFITS OF SUN EXPOSURE
Positive effects of the sun on the skin
Sun's rays have positive effects. Ultraviolet B rays are responsible for the body to produce vitamin D, which is crucial for prevention of rickets. UVA rays are also used to treat certain diseases like psoriasis or eczema.
This does not mean we should necessarily sunbathe to get this vitamin since, as a general rule, exposing ourselves to the sun some minutes a day or just a daily walking in the sun will be generally enough for the body to synthesize this vitamin.
However, if we expose to the sun to enjoy it or we like tanning our skin, we should do it in a rational manner, protecting ourselves with the proper sunscreen. (More information about sunscreens in the listing above)
Negative effects of the sun on the skin
The incidence of too much sunlight on the skin is responsible for the occurrence of many diseases and skin problems, among which we can include, for example: aging, dry skin, the appearance of wrinkles, bags under the eyes, crow's feet, spots, or skin cancers.
Why sunlight can be bad for skin?
The sun's ultraviolet rays are mainly responsible for the damage caused to the skin. The effects of these rays are cumulative, so that the radiation that skin accumulates over time is responsible for the development of melanoma, the most common type of skin cancer which every day is more widespread. There are different types of ultraviolet rays. The main ones are:
UVB rays are even more pernicious: they are the main cause of sunburn, skin aging and skin cancer.
Ultraviolet C rays are very short waves that are filtered by the ozone layer. In theory, they should not reach the ground, but we all know that the ozone layer is not at its best nowadays, so that this kind of rays could severely damage our health.
How to know which protection to use?
In most countries, on television or in newspapers, one can access to the UV index which is what tells us the average risk values against sun exposure. These exposure levels may pose a low risk, a moderate risk, a high or extremely high risk.
This type of index is an advice to avoid too long exposure or, if you decide to expose yourself, you should take some sort of protection.
It is very suitable for you to use a sunscreen with a Sun Protection Factor according to your type of skin and the time you are going to be in contact with sun rays. For more details about which Sun Protection Factor to use, you can find more information on the chapter " Types of skin" in the listing above.
More information about sun creams and sunburns in the listing above.
Other interesting articles
This material is for informational purposes only. In case of doubt, consult the doctor.