For the first time, scientists have identified four places on human DNA that might determine whether a person is left-handed.

People who have more than two sodas a day -- with or without sugar -- had a higher risk of dying over about 16 years than people who sipped the fizzy beverages less than once a month, a new study found.

Scientists have developed a way to manipulate a mouse's neural circuits remotely. The technology could be used to study disorders like Parkinson's and Alzheimer's.

Alpha-synuclein works to repair DNA damage in neurons of mice, which may prevent cell death -- and could lead to new treatments for Parkinson's disease and similar conditions, according to new research.

Athletes in Major League Baseball (MLB) tend to live about 24 percent longer than the average American guy, according to a century's worth of mortality rates among nearly 10,500 pro baseball players.

Sen. Johnny Isakson fell in his Washington, D.C., apartment and fractured four ribs, his office revealed Saturday.

While Parkinson's disease patients often receive treatment for lower dopamine levels, researchers say treatment should also target the chemical acetylcholine.

Early-stage male patients who are sexually active experience "milder" disease progression and a less dramatic loss of motor skills and other disease symptoms, a new study found.

Many U.S. stem cell clinics don't have doctors with the appropriate professional training for the illnesses treated there, a new study found.

A widely used group of drugs -- anticholinergics -- used for everything from depression to allergies and gastrointestinal conditions to Parkinson's disease, may increase risk for dementia, a new study says.

A drug used to control epilepsy and other disorders could be associated with a higher risk of suicide among young people, according to a new study.

A new law in Colorado capping the price of insulin for insured patients at $100 per month has generated interest in other states because the price of the life-saving drug has spiked, lawmakers said.

A federal judge in Florida has handed the U.S. Food and Drug Administration a victory in a case seeking to prevent unproven stem cell treatments from being used on patients.

A long-term antibiotic treatment limited the growth of amyloid plaques in the brain by decreasing inflammation in the gut microbiome of male mice, researchers report in a new study.

Neuroscientists have identified two different nerve cell populations within the brain's substantia nigra, a relay station that controls a diverse array of movements.