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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.
Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.
To maintain good kidney function, you should drink at least 3 quarts of water daily. Water dilutes urine and helps prevent concentrations of salts and minerals that can lead to kidney stone formation. Chronic dehydration is a major contributor to the development of kidney stones.
Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
Human kidneys will clean about 1 million gallons of blood in an average lifetime.
![Male individuals of the banded Uromastyx, Uromastyx flavofasciata, are different colours. Most natur](https://biology-forums.com/gallery/47/medium_33_22_09_11_9_37_27_18091385.jpeg)
![Female individuals of the banded Uromastyx, Uromastyx flavofasciata, are different colours. Most nat](https://biology-forums.com/gallery/47/medium_33_22_09_11_9_37_27_18101556.jpeg)