Know that in cities the sun’s intensity is not less than when you’re on the beach. The difference, I just think there protect yourself or use sunscreen while in the streets in the place you live not.

However, it is necessary to take into account the need to protect him but you lose the freshness and health of your skin in the short term.

What is the reason? here are the main specialists to share with you this spring and summer to start new habits to age prematurely because they are not exposed to the rays it emits.

The cons of sun exposure:

1) Almost all (95%) of the ultraviolet rays that penetrate our atmosphere are UVA and UVB rays. Therefore, even in town you should use a sunscreen that includes shielding.

2) Any stop acting sunscreen after 2 hours, because the epidermis absorbs filtros.Así you must reapply during the day.

3) Beware of materials that reflect the sun, they hurt themselves more than the rays.

4) Photo-aging cumulative action: the sun is causing skin aging caused by the combined action of UVA, UVB, visible light and infrared certain period of time:

- Effect on the skin: dryness, wrinkles and pigment mottling.
- Effect on dermis: rupture of the fibers of collagen and elastin and can cause cell damage.

The recommendation is:

Start a specialist pair know your tolerance to the sun. It’s called phototype and the general rule is that the darker the skin, better photoprotection system works.

But it is the rule. Exceptions may be genetically inherited, as a dark skin who inherited the sensitivity of a fair-skinned grandfather.

The positive effects of the sun:

- Promotes the synthesis of vitamin D to help fix calcium on bone and has great therapeutic power.

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Researchers from the University of Manchester asked a group of ten volunteers who ate the equivalent of five tablespoons of tomato paste and ten grams of olive oil for twelve weeks and an equivalent to just take the oil.

The scientists exposed volunteers in both groups at the beginning and the end of the experiment to ultraviolet radiation and found that the first group were 33 percent less likely to burn at the second exposure to sunlight. The effect of concentrated tomato paste was equivalent to 1.3 of protection factor cream for the skin, as the scientists estimated.

The tomato diet also increased levels of procollagen, a molecule that helps maintain the suppleness of the skin. Scientists believe that these beneficial effects are due to the presence in tomato of a powerful antioxidant known as lycopene. This substance, which is what gives its green color to tomatoes, has the ability to neutralize harmful molecules produced in skin exposed to ultraviolet rays.

The damage produced by these free radicals in skin structures lead to premature aging and in the most extreme cases of skin cancer.

Thus, another team from Newcastle University found that lycopene limit the harmful effects of sunlight on the DNA of the mitochondria (cellular organelles responsible for supplying and managing the energy required for cellular processes). Disturbances experienced by mitochondrial DNA are also associated with skin aging.

Commenting on the results of these experiments, Professor Lesley Rhodes, dermatologist at the University of Manchester, said that we should not think that tomatoes can replace skin creams, but can enhance its effect.

“If the individual is able to improve their protection in the long run through diet, it can have a significant effect,” said British scientist.