A growing body of scientific evidence suggests that breathing bad air can heighten the probability of suicide. The latest evidence comes from pollution-plagued Salt Lake County.
Carbon dioxide fertilizes plants, but it can also make crops less nutritious. A new discovery could help farmers develop new strains to feed the world even as carbon dioxide levels rise.
Scientists may have figured out which part of the brain makes us think we can win roulette. It's part of the same knot of neurons linked to love and hunger.
Scientists are learning more about how we process feelings of gentle touch. New discoveries published Sunday could help restore fading sensations—and ease painful hypersensitivity.