Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.
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Green tea is able to stop the scent of garlic or onion from causing bad breath.
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Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.
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Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.
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Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.
Decomposers (detritivores) feeding on dead plant and animal matter.