Hairy Men More Rare Parasite infestation

News Health Articles - Hairy Men More Rare Parasite infestation. Body hairy men more than women. Fine hairs proved useful. Because people who have more hair can become better at detecting bedbugs and body were so rare parasitic infestation.

In an article published in the journal Biology Letters, the researchers found that body hair (fur) improve people's ability to detect bedbugs.



Partsipan conducting trials were faster to recognize ticks on a hairy arm than did participants who are not too hairy arms. This is because hair serves as a motion detector lice. Hair also complicate and prolong the time of the parasite in finding a place to eat because his movement hindered fur.

Men seem better at detecting parasites, because men are generally more hairy than women because of higher testosterone levels. Body without hair more often bitten by blood-sucking insects that prefer to bite relatively hairless areas such as the ankle.

Although researchers do not say that the difference in body hair in men and women caused by the parasite, the researchers speculate that women in the past may prefer men who have fewer parasites, namely haired man.

Humans are relatively hairless compared with the closest relatives, the apes. But the density of hair follicles in human skin are actually the same as in the apes of the same size.

Fine hairs that cover the human body has replaced the thick fur on their close relatives, and is estimated to be remnants of evolution of human ancestors that hairy.

"I run a research group that seeks to understand the biology of blood-sucking insects. Our goal is to find ways to effectively control insects, and thus can prevent transmission of disease through insects," said researcher Michael Siva-Jothy, evolutionary ecologist at the University of Sheffield in England as quoted by LiveScience, Wednesday (12.14.2011.

Researchers recruited 29 people volunteer university students through Facebook and shave the hair on one of their arms. The scientists then tested how long it takes the volunteers to detect bedbugs are placed in each arm and how long it takes the parasite in finding a good place to eat.