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Saliva can predict excess body fat in teenagers
Publicado em 19 fevereiro 2020
Rio de Janeiro, Feb 19 | In addition to keeping the mouth moist and protecting us against germs, saliva can also be used for early detection of the risk of developing diseases associated with surplus body fat, a new study suggests.
For the findings, published in the journal Nutrition Research, the researchers in Brazil performed a study in which they used the level of uric acid in saliva to predict body fat percentages in teenagers and identify those with surplus fat even if they had no [...]
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Stress Makes Your Hair Turn Gray, New Research Shows
Publicado em 28 janeiro 2020Scientists believe they have uncovered "new evidence" that shows how acute stress can cause hair to turn white prematurely. Mice experiments have revealed that extreme levels of stress causes the sympathetic nervous system, which is responsible for the body's rapid involuntary response to dangerous or stressful situations, to become hyperactive. This, in turn, drives the rapid depletion of stem cells responsible for hair colour, leading to pigment loss and development of white [...]ver notícia -
How stress make your hair turn grey
Publicado em 24 janeiro 2020WASHINGTON: Scientists have identified for the first time the mechanism by which chronic stress causes hair colour loss, an advance that may lead to the development of novel drugs which can prevent the whitening of hair. In the study, published in the journal Nature, the scientists induced intense pain in special black mice for several weeks using a substance called resiniferatoxin, and turned the animals' fur completely white. "For the longest time it's been said that stress [...]ver notícia