Ward, Brian R

Examines the different types of drugs, their effects, health risks, and the reasons why people take them.

Examines the effect of the environment on our physical health.

Discusses teeth, their function, and the importance of keeping them clean and in good condition.

Describes the structure and functions of the brain and spinal cord and how neurons carry messages to and from the brain.

Discusses the structure and functions of the skeleton and muscles.

Describes how the parts of the eye work together with the brain to record visual messages.

Explains why hygiene is important in preventing diseases, how infections spread, and describes some common infections.

Discusses different types of drinks, the social and physiological effects of alcohol, and the problems of alcoholism.

Discusses the benefits of exercise and physical fitness.

Examines injuries and diseases likely to afflict the bones and joints, including breaks, strains, arthritis, and cancer.