« previous next »
« previous next »
 

Did you know?

There are more nerve cells in one human brain than there are stars in the Milky Way.

Did you know?

Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.

Did you know?

Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.

Did you know?

There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).

Did you know?

Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.

Diabetes mellitus. The metabolic disease diabetes mellitus, with symptoms of polydipsia, polyuria, a Diabetes mellitus. The metabolic disease diabetes mellitus, with symptoms of polydipsia, polyuria, a
Remedies for insomnia include increased physical exercise and time spent outdoors. Remedies for insomnia include increased physical exercise and time spent outdoors.
How Orbital Eccentricity Changes the Amount of Solar Radiation Earth Receives How Orbital Eccentricity Changes the Amount of Solar Radiation Earth Receives
El Niño demonstrates the atmosphere-ocean connection El Niño demonstrates the atmosphere-ocean connection
Coal pollutes the atmosphere Coal pollutes the atmosphere
Carbon Dioxide Concentrations for 400,000 years Carbon Dioxide Concentrations for 400,000 years
Video: What are Taste Receptors? How Does it Work? Animation

For a complete list of videos, visit our video library