Rising temperatures and the summer holiday is in sight – many people are happy these days to rest out in the nature and on the beach. This risks and side effects should not be displaced. Because the skin needs in the summer, protection.
What the sun does with the skin?
The contained in the sunlight, ultra violet rays (UV) are held for the largest part of the earth’s surrounding ozone layer away. What matters, nevertheless, in humans, stimulates the pigment cells in the skin to produce a brown dye. This is a natural protection mechanism.
To a lot of sun but is light on the skin will trigger an inflammatory response: Certain messengers then lead to a reddening of the skin, it swells, itches and burns, then one speaks of a sunburn. Finally, die a lot of heavily damaged cells of the upper skin. The affected area peels off.
How much UV-irradiation tolerated by the skin, is different for everyone. Orientation is the classification of skin types according to the American dermatologist Thomas Fitzpatrick. On the page of the Federal office for radiation protection Unsafe can do a skin type test.
People with very fair skin should not be longer than 10 minutes in the sun, people with dark skin have a natural protection time of more than 90 minutes.
What causes skin cancer?
UV-radiation is also associated with the development of skin cancer. Studies have shown that sunburns increase the risk of skin cancer significantly. Because UV radiation can damage the genetic material in the cell nucleus. Most of the so-damaged cells to die to protect the skin. You can also output cells for a Tumor. Your descendants will not stop to share – you are a cancer cells.
- Asymmetry: A spot can be dangerous, if he does not have a round or oval shape, but are asymmetrically constructed.
- Limitation: A fuzzy boundary can also a melanoma indicate how irregular fraying or the foothills of the Pigmentmals.
- Colour (color): A nevus with multiple shades of color should be observed.
- Diameter: a Pigmentmal, the diameter of which is greater than five millimeters should be respected.
How does actually the sun cream?
Sunscreen can rays harmful UV either chemically or physically to stop it. Physical filters work by using the mineral pigments that reflect UV-radiation. They form a protective layer on the skin, the radiation bounces off. Chemical filters can absorb UV radiation of a certain wavelength, and in other forms of energy – such as heat – convert.
The sun protection factor (SPF) of a cream indicates how much longer the user and Creamed in the sun can stop, without the sunburn tournament.
What is a mosquito bite makes the skin?
Only female mosquitoes sting humans. The mosquitoes, the females need blood to make eggs for reproduction. If you penetrate it with their proboscis in the skin to suck blood, but also tiny amounts of saliva from the substance inhibits blood clotting and widens the blood vessels in the human skin. So, the blood eye is for the mosquito easier. At the same time, in the mosquito saliva proteins activate but also defensive reactions, the itching and inflammation at the injection site to the cell to the trigger.
Other insects – such as wasps or bees – react with poison on suspected attacks from people. Here, too, the defensive reaction, with swelling and redness of the affected skin shows the body.
Cooling for sunburn and bites helps?
The Cool the itchy skin can slow down certain inflammatory processes and the forwarding of the itching on the nerves affect. However, the Cool help, especially during the application, suspected of the Berlin allergist Marcus Maurer. For the effects of other home remedies such as raw onions or Aloe Vera there is no evidence.
In the case of sunburn, or stings into the sea?
A combined therapy with a salt water and UV radiation can, under certain circumstances, complaints of the skin to relieve about in the case of psoriasis, the results of studies. And also acute wounds can be cleaned with a salt solution – if this sterile and 0.9 per cent, physiologically, i.e. the salt content of human blood corresponds to.
Sea water with an average salinity of 3.5 percent, but is too concentrated for the human body. This can dry out the damaged skin and the healing of even delay. Moreover, sea water contains germs and existing wounds may thus ignite. When bathing in the sea, you should be excited bites or severe sunburn so be careful.