According to scientists, the number of species of microorganisms that permanently reside in the human oral cavity amounts to 200-500. Of those, only fifty are named and studied. They have various looks: balloons, ovoids, bacilli, those that look like corn on the cob, bottle brushes, spirals, zippers, etc. What of the inhabitants of the mouth are our enemies, and what are friends?
ANN ARBOR, Mich.—It’s unavoidable: breakdowns in brain connections slow down our physical response times as we age, a new study suggests.
This slower reactivity is associated with an age-related breakdown in the corpus callosum, a part of the brain that acts as a dam during one-sided motor activities to prevent unwanted connectivity, or cross-talk, between the two halves of the brain, said Rachael Seidler, associate professor in the University of Michigan School of Kinesiology and Department of Psychology, and lead study author.
Another reason for including asthma on the list of potential health risks posed by secondhand tobacco smoke, especially for non-smokers, has been uncovered. Furthermore, the practice of using ozone to remove the smell of tobacco smoke from indoor environments, including hotel rooms and the interiors of vehicles, is probably a bad idea.
ANN ARBOR, Mich.— University of Michigan School of Dentistry has signed an agreement with Interleukin Genetics Inc. to conduct what may be the largest clinical study to date using genetic testing to assess the risk for gum disease.
COLUMBIA, Mo. – Progestins are used in hormone replacement therapies to counteract the negative effects of estrogen on the uterus and reduce the risk of uterine cancer.
However, evidence in recent studies and clinical trials has demonstrated that progestins increase the risk of breast cancer.
Women’s rights are high on the international agenda as the world moves towards a more egalitarian model, finally creating and respecting gender equality and the empowerment of women.
PRAVDA.Ru presents its exclusive interview*.
*Technology provides interactive feedback while patients exercise*
COLUMBIA, Mo. — Exercise is an important part of recovering from an injury, illness or surgery, but many older adults lack the knowledge and guidance needed to properly perform exercises.
ANN ARBOR, Mich.—In one of the first human studies of its kind, researchers have found that urinary concentrations of the controversial chemical Bisphenol A, or BPA, may be related to decreased sperm quality and sperm concentration.
