medical research

If a female researcher asks a man if he's in pain, he's less likely to admit it. The effect of gender on study results has been known for years. But it's rarely disclosed or discussed.

After decades of hope and disappointment, doctors have now been able to treat several different types of genetic conditions by giving each patient a healthy version of their defective gene.

Research indicates a significant number of the tumors detected through mammography are small because they are prone to slow growth. The findings suggest many are unlikely to become life-threatening.

A neuroscientist argues that our noses are more powerful than we think. Humans, he says, actually have a great sense of smell.

Most potential new drugs don't work when tested in people. It's a major disappointment and it drives up the cost of developing new drugs. One big reason is the use of animals in medical research.