Researchers from the University of Cambridge have published the results of genetic experiments that have been conducted at the university over the past few years.

The studies concerned the effects on the human body of various harmful factors leading to the development of oncological diseases.

Thus, it has been proven that for every 15 cigarettes smoked, a smoker has approximately one DNA mutation. The increase in the number of mutations in most cases leads to the development of various diseases, and not always directly related to the respiratory tract. Brain activity, metabolism, and blood circulation suffer as well. Moreover, if earlier doctors were looking for the direct effect of nicotine and resins on the activity of the body, then geneticists proved that the destructive effect of toxins occurs at a more global level – at the level of human DNA.

Researchers have proved that in the majority of lung cancer patients studied, the number of mutations directly related to exposure to tobacco smoke is about 20,000-25,000. That is, 1,300-1,600 cigarettes – and the genetic code of the smoker (both active and his family members) turns out to be dangerously rewritten.

The situation is similar with other exposure factors dangerous to human health – for example, with exposure to sunlight, which are most dangerous for people with sensitive skin and white or red hair color.

A 23-year-old American woman managed to survive after being shot in the head

A girl from New York, Heather Brammer, managed to survive after being shot directly in the back of the head. Six days after the incident, Heather was discharged from the hospital. Doctors say that the injury did not cause long-term damage to the girl.
The bullet was fired into Heather's head two weeks ago, it happened in the laundry room where the girl worked as a manager. An African-American visitor came into the laundry, asked about the cost of renting tailcoats, left and returned with a gun in his hands. Threatening the girl with a weapon, he demanded to get all the money from the cash register and the safe. The perpetrator then ordered Heather to lie down on the floor and shot her in the back of the head at close range.

Twenty minutes after the incident, the girl regained consciousness, she crawled to the phone and was able to call the rescue service. At the hospital where Heather was taken, she underwent an X-ray examination, the results were incredible: the bullet stuck in the base of the girl's skull, the deadly metal stopped just two millimeters from the brain.

Doctors declare that they have never seen such lucky patients before.

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