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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.
About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.
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.
Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%
Symptoms of kidney problems include a loss of appetite, back pain (which may be sudden and intense), chills, abdominal pain, fluid retention, nausea, the urge to urinate, vomiting, and fever.
![This 11-month old girl demonstrates one of the abilites of a child of this age group - creating a to](https://biology-forums.com/gallery/47/medium_2137_17_05_12_2_24_21.jpeg)
![Relationship between the number of CAG repeats in a gene and the age of onset of Huntington disease.](https://biology-forums.com/gallery/47/medium_234464_20_01_15_10_59_34_202501361.jpeg)