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Individuals are never “cured” of addictions. Instead, they learn how to manage their disease to lead healthy, balanced lives.
Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.
Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%
When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).
Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).
![(a) The relative age ranges of different dating techniques depend upon the half-life of the system u](https://biology-forums.com/gallery/47/medium_274477_04_02_15_12_24_31_205741018.jpeg)
![Long bones develop from several bony centers--one for the shaft and at least one for each end. The e](https://biology-forums.com/gallery/47/medium_273688_23_02_15_8_21_19_208905.jpeg)