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Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).
About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.
In women, pharmacodynamic differences include increased sensitivity to (and increased effectiveness of) beta-blockers, opioids, selective serotonin reuptake inhibitors, and typical antipsychotics.
Illicit drug use costs the United States approximately $181 billion every year.
According to animal studies, the typical American diet is damaging to the liver and may result in allergies, low energy, digestive problems, and a lack of ability to detoxify harmful substances.
![The Blue-bearded Bee-eater Nyctyornis athertoni is a large species of bee-eater found in South Asia.](https://biology-forums.com/gallery/47/medium_12359_29_04_12_6_13_32.jpeg)
![Landbridge connections between continental Asia and Indonesia during glacial periods extend as far a](https://biology-forums.com/gallery/47/medium_275510_22_02_15_5_56_55_20768103.jpeg)