If you have ever had to adjust to a new time zone, you have noticed that it takes a while before you start to feel normal again. By shifting your sleep and activity schedule, you have altered the pattern of your body's circadian rhythms....

This interactive feature from the NOVA: "Surviving Denali" Web site details the variety of ways the body can fail while climbing a high-altitude peak.

Discusses the methods the human body uses to regulate body temperature. Includes links to the four external heat transfer mechanisms (radiation, conduction, convection, and evaporation of perspiration).

This video describes the role of the brain in regulating body temperature and how sometimes fever is employed to fight off infection.

Homeostasis is the regulation of internal conditions inside cells or organisms, to create the optimum conditions for biological function, including body temperature. Links to a video and test are provided.

Students apply the concepts of conduction, convection, and radiation as they work in teams to solve two problems. One problem requires that they maintain the warm temperature of one soda can filled with water at approximately body...

A good site that discusses the rate at which a bird's metabolism functions and its effect on the body temperature of the animal.

This activity explains what a fever is and how the immune system uses it to try and protect the body against germs. The students then explore temperature further by creating a model of a thermometer and completing a temperature...

Get the facts on what causes a fever and how you get rid of it in this article written for kids.

You can perceive things by touching, tasting, smelling, listening and seeing. The sensory system that allows us to "feel" is called somatosensation (so-MAT-o-sen-sa-shun). Somatosensation is a broadly defined perceptual system that...