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Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.
Atropine, along with scopolamine and hyoscyamine, is found in the Datura stramonium plant, which gives hallucinogenic effects and is also known as locoweed.
The human body's pharmacokinetics are quite varied. Our hair holds onto drugs longer than our urine, blood, or saliva. For example, alcohol can be detected in the hair for up to 90 days after it was consumed. The same is true for marijuana, cocaine, ecstasy, heroin, methamphetamine, and nicotine.
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).
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.
![Circular friction to jaw muscles and temples. Apply circular friction with the fingertips over the ...](https://biology-forums.com/gallery/33/medium_380798_23_08_17_1_47_41_331181263.jpeg)
![Apply circular fingertip friction on back, moving along spinal muscles from hip to shoulder and over ...](https://biology-forums.com/gallery/33/medium_380798_23_08_17_7_43_57_33348606.jpeg)