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Did you know?

Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.

Did you know?

Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.

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In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).

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Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.

Did you know?

The longest a person has survived after a heart transplant is 24 years.

Outer Space Outer Space
The internal structures of the outer, middle, and inner ear. The internal structures of the outer, middle, and inner ear.
Current Positions of Known Dwarf Planets and SSSBs in the Outer Solar System Current Positions of Known Dwarf Planets and SSSBs in the Outer Solar System
Electrical charge of the inner and outer regions of nerve cells Electrical charge of the inner and outer regions of nerve cells
Injecting the upper outer quadrant of the buttocks. Injecting the upper outer quadrant of the buttocks.
Thumb press Inner and Outer Bladder meridians in upper back between shoulder blades; press into ... Thumb press Inner and Outer Bladder meridians in upper back between shoulder blades; press into ...
Video: Cell mediated immune response to a viral infection Animation

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