Parkinson's disease sufferers have been offered new hope after the gene mutation which triggers it was identified by scientists.

When two people talk, similar areas of their brain activate

Since the days of Reefer Madness, scientists have sought to understand the complicated connection between marijuana and psychosis

Dread forcing your toddler to part with the pacifier? You're not the only one thinking of calling in the Binky Fairy. A new study indicates that 80% of parents lie to their children to try to influence their emotions or behavior

Rabbits implanted with artificial bones re-grew their own joints, complete with cartilage

US patients spend tens of thousands of dollars travelling to foreign stem cell clinics for treatments that aren't available in the US. But scientists say some of these clinics are scams, selling unproven, worthless treatments to desperate people with incurable diseases.

Some dogs may look like their owners, but all dogs imitate their human companions.

The human foot has changed shape in the past few million years, springing an arch that enabled us to run and walk more proficiently than our ape-like ancestors who grasped branches and swung from the trees. Now, researchers are trying to determine when that change took place.

As bacteria become drug-resistant, once-abandoned treatments are seeming less risky.

An extraordinarily toxic bacterium harbored by the "infernal" Styx River might have been the fabled poison rumored to have killed Alexander the Great (356 - 323 B.C.) more than 2,000 years ago, according to a scientific-meets-mythic detective study.

Despite the girls-gone-wild image of promiscuous college women, a new journal article suggests that women are actually more sexual in their 30s and 40s

These sharks' diets had long been a mystery, but DNA sequencing is shedding light on how they survive in their deepwater world.

"Fossil" genes from the Ebola family of viruses found in wide range of mammals reveal pathogens' ancient origins

For nearly 20 years, neuroscientist Jim Fallon has studied the brains of psychopaths. After learning that his ancestry included alleged murderers, he decided to study his own brain. He was shocked at what he discovered.

The first engineered animal for people to eat, salmon that grow faster than normal, may be approved by the F.D.A.