|
|
The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.
Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.
Vaccines prevent between 2.5 and 4 million deaths every year.
Once thought to have neurofibromatosis, Joseph Merrick (also known as "the elephant man") is now, in retrospect, thought by clinical experts to have had Proteus syndrome. This endocrine disease causes continued and abnormal growth of the bones, muscles, skin, and so on and can become completely debilitating with severe deformities occurring anywhere on the body.
It is difficult to obtain enough calcium without consuming milk or other dairy foods.
![These species are all at risk of extinction. Species with “slow†life-h](https://biology-forums.com/gallery/47/medium_33_22_09_11_9_27_14_1782478.jpeg)
![Extinction and immigration of bird species on the California Channel Islands between 1917 and 1968 (](https://biology-forums.com/gallery/47/medium_33_19_02_12_5_42_32_20691962.jpeg)
![In some species, dominant females have more surviving offspring that mature earlier indicating an ad](https://biology-forums.com/gallery/47/medium_269691_26_01_15_5_57_41_204522328.jpeg)