The transmission of hospital-caused infections is discussed; efforts to control hospital pathogens are described. (DT)

Proteins isolated from the brain and used as drugs can improve and apparently even transfer mental states and behavior. Much of the pioneering work and recent research with humans and animals is reviewed and crucial questions that are being posed about the psychologically active peptides are related. (BT)

Reports on research investigating links between the psyche and somatic diseases. (CP)

Describes research conducted related to the disease of senility; indicates it is different from normal aging. (SL)