“I view affect as the primary innate biological motivating mechanism, more urgent than drive, deprivation, and pleasure, and more urgent even than physical pain ...

Untreated clinical depression is a serious problem. Untreated depression increases the chance of risky behaviors such as drug or alcohol addiction. It also can ruin relationships, cause problems at ...

“The critical point is that the human being has evolved as a multimechanism system in which each mechanism is at once incomplete but essential to the functioning of the system as a whole.” –Silvan S.

Share on Pinterest Research shows that Alzheimer’s disease affects many organs beyond the nervous system. Nisian Hughes/Getty Images Alzheimer’s is characterized by a buildup of proteins in the brain, ...

Rheumatoid arthritis affects various parts of the body beyond the joints, including the skin, eyes, lungs, heart, and even the brain. In the bones and joints, it can cause pain, swelling, bone damage, ...