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In women, pharmacodynamic differences include increased sensitivity to (and increased effectiveness of) beta-blockers, opioids, selective serotonin reuptake inhibitors, and typical antipsychotics.
Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.
After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.
When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.