Psychology & Psychiatry

Brain molecule identified as key in anxiety model

Boosting a single molecule in the brain can change "dispositional anxiety," the tendency to perceive many situations as threatening, in nonhuman primates, researchers from the University of California, Davis, and the University ...

Genetics

Gene could play role in body's muscle mass

Scientists have identified a gene they think could play a role in determining a person's muscle mass - which is linked to a number of health factors, including how long someone lives.

Alzheimer's disease & dementia

New evidence links sight loss to dementia

A new study suggests that sight loss in people over 71 years old may be linked to dementia. The study was published on July 13 in JAMA Ophthalmology.

Diseases, Conditions, Syndromes

Bacterial link in celiac disease

Bacterial exposure has been identified as a potential environmental risk factor in developing coeliac disease, a hereditary autoimmune-like condition that affects about one in 70 Australians.

Health

Gap growing between longest and shortest lifespans in the US

Babies born today in 13 US counties have shorter expected lifespans than their parents did when they were born decades ago, according to a new study. For example, life expectancy at birth in Owsley County, Kentucky, was 72.4 ...

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