physiological aspects

Examines exercise, covering how often and how long we should exercise, how to avoid injury, and how to find the right form, routine, and equipment based on fitness goals.

Describes the importance of regular exercise in maintaining health and physical fitness and provides tips on choosing an activity.

Discusses the physical and emotional impact of chronic loneliness, demonstrating the influence of social context as a factor in depression and ill health, and examines how social isolation disrupts behavior, perception, and physiology while social cooperation works as a defining survival characteristic of humans.

Provides information on the history of dream research focusing on the psychological significance of various dream habits.

Discusses alcohol use in the United States, including the physical effects, the origin of the drinking age, societal mixed messages, and the sociological impacts.

Discusses the importance of making healthy food choices, focusing on the dietary needs of athletes, dicussing carbohydrates, protein, fats, vitamins and minerals, fluids, training and competing, and related topics, and including a selection of recipes.

Reports on research from neuroscience, as well as the behavioral and cognitive sciences that reveals how the brain learns, and discusses the implications of these discoveries for educators and their instructional methods.

Explores the parts of the eye and how they function, including information on diseases and illnesses.

Photographs, anatomical drawings, and text describe how muscles move during exercise, covering warm-ups, stretching, and exercises of the legs, hips, back, chest, shoulders, arms, and core.