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, ...

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

High blood glucose levels from diabetes can damage blood vessels and nerves throughout the body, leading to complications like heart disease, stroke, kidney disease, vision loss, and neuropathy.

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 ...

Multiple sclerosis causes a breakdown of the protective cover around nerves in the brain and spinal cord. This can affect various body systems, resulting in difficulties with thinking, vision, mood, ...

“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.