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Author Question: For the electronic motor drive shown, the purpose of the controller is to alter the frequency of the ... (Read 144 times) |
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.
Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.
Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.
There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
If all the neurons in the human body were lined up, they would stretch more than 600 miles.