Did you know?
Certain topical medications such as clotrimazole and betamethasone are not approved for use in children younger than 12 years of age. They must be used very cautiously, as directed by a doctor, to treat any child. Children have a much greater response to topical steroid medications.
Did you know?
Vaccines prevent between 2.5 and 4 million deaths every year.
Did you know?
Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.
Did you know?
Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.
Did you know?
Signs and symptoms of a drug overdose include losing consciousness, fever or sweating, breathing problems, abnormal pulse, and changes in skin color.
A maneless male lion, who also has little body hair - from Tsavo East National Park, Kenya
Comic strip on hair
Details of two hair cells
Albinos lack pigment in the skin, hair, and eyes.
An older woman with wrinkled skin, gray hair, and darker teeth, smokes a cigarette.