A genetic peek deep into the heart of Africa confirms that Africans have more genetic diversity than Europeans or Asians and provides insights into how to live a long life despite disease and famine.

Women may think of men as primitive, but new research indicates that the Y chromosome — the thing that makes a man male — is evolving far faster than the rest of the human genetic code.

People with a gene linked to long life and good health are also less likely to develop Alzheimer's disease, United States (U.S.) researchers said on Tuesday.

Researchers have found four new genetic variants that increase the risk of contracting one of the major forms of leukemia, confirming that risk factors for the fatal blood cancer can be inherited.

Prolonged exposure to cocaine can cause permanent changes in the way genes are switched on and off in the brain, a finding that may lead to more effective treatments for many kinds of addiction, U.S. researchers said on Thursday.

At his first birthday, John Klor could not sit up on his own. A few months later, he was cruising like any healthy toddler — thanks to a special diet that is treating the boy's mysterious disease.

Will a gene bring healthful blessings or the curse of disease? It may depend on whether it is inherited from mom or dad, researchers reported on Wednesday.

Churchgoers have been found to have lower rates of drinking and smoking than those who spend their Sundays elsewhere.

Nine-year-old Corey Haas can ride his bike alone now, thanks to an experimental gene therapy that has boosted his fading vision with a single treatment.

Men with a rare disorder in which they carry extra female genes can still have children if they undergo a surgical procedure for collecting their sperm, according to a new study.