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Author Question: Kareem started smoking a year ago in the seventh grade. He knows that smoking is unhealthy, but he ... (Read 9854 times) |
The longest a person has survived after a heart transplant is 24 years.
Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.
Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.
Nearly all drugs pass into human breast milk. How often a drug is taken influences the amount of drug that will pass into the milk. Medications taken 30 to 60 minutes before breastfeeding are likely to be at peak blood levels when the baby is nursing.
Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.