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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.
More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.
All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.
Though methadone is often used to treat dependency on other opioids, the drug itself can be abused. Crushing or snorting methadone can achieve the opiate "rush" desired by addicts. Improper use such as these can lead to a dangerous dependency on methadone. This drug now accounts for nearly one-third of opioid-related deaths.