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The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.
Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.
In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.
In 2010, opiate painkllers, such as morphine, OxyContin®, and Vicodin®, were tied to almost 60% of drug overdose deaths.
The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.
![(A) Lymphatic vessel with valves within tissue cells; (B) photomicrograph of lymphatic vessel with v](https://biology-forums.com/gallery/47/medium_14755_10_09_12_7_17_45_85041332.jpeg)
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