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Did you know?

Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.

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Your heart beats over 36 million times a year.

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Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

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Children of people with alcoholism are more inclined to drink alcohol or use hard drugs. In fact, they are 400 times more likely to use hard drugs than those who do not have a family history of alcohol addiction.

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Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.

Arrangement of the sarcoplasmic reticulum, transverse tubules, and myofibrils in a single skeletal m Arrangement of the sarcoplasmic reticulum, transverse tubules, and myofibrils in a single skeletal m
Erythrocytes (red blood cells) moving through a capillary in single file. Erythrocytes (red blood cells) moving through a capillary in single file.
Giardiasis. Colorized electron micrograph of a Giardia protozoan adhering to the surface of an epith Giardiasis. Colorized electron micrograph of a Giardia protozoan adhering to the surface of an epith
Withdrawing Medication from Single-Dose or Multiple-Dose Vials Withdrawing Medication from Single-Dose or Multiple-Dose Vials
A single-nucleotide change in the DNA encoding -globin A single-nucleotide change in the DNA encoding -globin
Ancient fossilized single-celled organisms Ancient fossilized single-celled organisms
Video: Ciliate conjugation Animation

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