Researchers have new insight into the relationship between Parkinson's disease and smoking. Several studies have shown that smokers have a lower risk of developing Parkinson's disease. A new study shows that smoking for a greater number of years may reduce the risk of the disease, but smoking a larger number of cigarettes per day may not reduce the risk.

Tarsiers' ultrasonic calls -- among the most extreme in the animal kingdom -- give them a "private channel" of communication, says an anthropologist.

Sending electrical pulses into the brain may improve memory.

About 1 in 10 physicians say they have told patients something that was not true in the last year.

The tiny water bacterium Caulobacter crescentus secretes a sugary substance so sticky that just a tiny bit could hold several cars together.

Ever gone to the movies and forgotten where you parked the car? New research may one day help you improve your memory. Neuroscientists have demonstrated that they can strengthen memory in human patients by stimulating a critical junction in the brain.

Teenage pregnancy, birth and abortion rates have steadily decreased over the last two decades.

Frankenstein's monster is probably not a possibility, but scientists are getting better at bringing people back to life.