People who are allergic may not have cancer

Skin allergies are uncomfortable, but it is good news, scientists claim. This itch can help prevent cancer.

Try an allergic reaction to different agents.

Danish scientists have found that people who are susceptible to common agents such as perfume, nickel . are at a lower risk of 3 types of cancer.

This may be due to an allergic allergic reaction (when the body mistakes that it is being attacked) and also helps the immune system fight off other threats.

According to Time, the study, conducted by Dr. Kaare Engkilde and colleagues, from the University Hospital of Copenhagen, looked at data of 17,000 adults, who participated in allergy tests with common agents from the middle of the year 1984 and 2008.

They found that only one-third of them, about 6,000 people tested positive for at least one allergen. They then compared this result with data from the Danish Cancer Agency.

The team found that in the group of exposed allergies, the incidence of breast cancer, non-pigmented skin cancer was significantly lower, in both sexes. Particularly in women, the incidence of brain cancer is also lower.

Previous studies have also found that people with pollen allergies and house dust may be resistant to this dangerous disease.

The finding also supports the " immune surveillance hypothesis ," whereby people with allergies are less likely to develop cancer, because the immune system is too effective, the study authors said.

" There may be some protection mechanisms and therefore, the immune system seems to be able to resist many things, including cancer ," said Dr. Clifford Basset from NYU Langone School of Medicine.

The survey also noted that the group of people with contact allergies had a higher incidence of bladder cancer, possibly as a result of the accumulation of high metabolites in the blood, the authors argued.

However, the group needs more research to consider other actors such as social class and tobacco.