The sun produces an inevitable and constant amount of
radiation, which reaches the earth in the form of ultraviolet rays: what should
you know about this type of radiation? How does our skin react after prolonged
exposure to the sun? What are the consequences of not using sunscreen? In this
article we try to reaction these demands.
The sun produces an inevitable and constant amount of
radiation, which reaches the earth in the form of ultraviolet rays: what should
you know about this type of radiation? How does our skin react after prolonged
exposure to the sun? What are the significances of not using sunscreen? In this
article, we try to reaction these enquiries.
UV rays are divided into 3 subcategories:
UV-A rays, capable of causing long-term damage to the skin
if sun exposure is greater than recommended and without the use of protective
sunscreen. They are responsible for our tanning (that is, the activation of
melanin); they represent approximately 98% of the ultraviolet rays that reach
the earth.
UV-B rays, whose presence is more important during the
summer months. They represent 2% of the rays that reach the earth and can cause
burns and skin irritation. These rays do not penetrate the skin as deeply as
UV-A rays, but they can damage DNA and change its genetic material.
UV-C rays, which cannot reach the earth's surface because
the layers of the atmosphere do not allow it, are the most dangerous for our
skin.
The sun's rays generate a reaction in our skin depending on
different factors: the exposure time, the exposure time, the use or not of
sunscreen, and our skin type. Melanin in our body is what reacts to the sun's
rays, darkening during and after exposure. If the subject has very light and
sensitive skin, he should use higher sunscreen and exposure at the most
appropriate times to avoid burns and skin irritation.
Protective sun care for the skin.
Healthy skin foundation
From 11 a.m. At 3 p.m., the sun's ultraviolet rays are more
dangerous than at other times of the day. In addition, it is important to know
that summer is the season in which you have to be more careful, since it is the
time of year when more UV rays reach a certain area of the earth, depending
on the rotation of the earth. and proximity to the sun. . In addition, UBV rays
also vary according to height: if we are in very high areas, such as in the
mountains, it is important to use sunscreen so as not to expose our skin to too
much radiation. It is common to think that the cream should be used only in
summer, being on the beach and only if we sit in the sun, but the reality is
that its use is important at all hours of the year.
Reflective surfaces (water, grass, snow) also make the use
of sunscreen even more important: these surfaces can increase the intensity of
UV rays. And, of course, let's not forget the importance of using creams also
when it is cloudy and if we are in the shade, especially in summer, because UV
rays penetrate the clouds and shade n is not enough protection against
radiation.
UV rays
UVC zone
Several studies have confirmed that exposure to the sun over
the years increases the presence of wrinkles on the skin, the appearance of
spots, and can even contribute to the proliferation of new moles or the change
in shape and appearance. The color of existing moles. on the skin (although
overgrowth is thought to be related more to genetic factors than external factors).
It is important to wear sunglasses in addition to sunscreen:
our eyes also deserve to be protected from the sun! In addition, the cream
should not be limited to "typical" application areas: it is important
to also have, for example, cocoa butter with UV protection for lip care, and
essential oils or lipids. Protective hairspray, because sunlight also damages
our manes, drying them, altering their color and opening the ends. This is even
more apparent during the summer and after swimming in chlorinated pools and /
or a salty sea / ocean.
Although exposure to the sun provides us with a good
amount of vitamin D,
essential for human life and a healthy lifestyle, and favors
the appearance and activity of white blood cells, in addition to generating a
disinfecting action on the skin (UV rays are bactericidal), the use of
sunscreens is essential to avoid harmful exposure and promote beneficial
exposure: always be careful and
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