Millions of Americans suffer from severe addictions that can ruin lives and are extremely difficult to control.

Bacteria can anticipate a future event and prepare for it, according to new research at the Weizmann Institute of Science.

Thanks to new imaging technology, scientists are able to see neurons that are critical to how people and animals learn from experience.

By ANDREW LIGHTMAN 53rd annual event HANOVER Ivan Pavlov conditioned his dog to salivate at the sound of a bell. Sarah Coffey trained her dog to sit whenever her cell phone rings.

Connor McCreaddie, an 8-year-old British boy who weighs about 200 pounds, made headlines recently when social workers considered taking him into protective care, which would prevent him from endangering his health by overeating.