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Author Question: Xuxa was a Brazilian media superstar of the 1980s and 1990s. As one of the country's most celebrated ... (Read 13 times) |
When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.
The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.
Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.