Doctors test for them within minutes of birth, because these simple motions reveal complex brain development. Primitive ...

Very few people can resist smiling at a newborn baby — signaling positive emotions, such as joy and interest. Of course, this is especially true for new parents. One study found that new mothers ...

Reflexes are automatic and involuntary actions the body produces in response to certain stimuli. While some reflexes can involve muscles and movement, others involve internal processes within the body ...