I discovered this article, which says that fluoride accumulates in the pineal gland, inhibits its production of melatonin, and causes early onset of sexual maturity. It states that early onset of sexual puberty is a well established symptom of thyroid hormone dysfunction. I was nine years old! It would be good if every child entering puberty at a very young age could be checked.
From the second quote, fluoride poisoning shows up as hypothyroidism!
http://www.mercola.com/2000/sep/10/green_tea_fluoride_thyroid.htm
Another thyroid/fluoride connection can be seen in Jennifer Luke's data (123) which has shown that fluoride accumulates in the pineal gland and inhibits its production of melatonin. Luke showed in test animals that this inhibition causes an earlier onset of sexual maturity, an effect already reported in humans as well in 1956, as part of the Kingston/Newburgh study. In fluoridated Newburgh, young girls experienced earlier onset of menstruation than girls in non-fluoridated Kingston (124).
The early onset of sexual puberty is a well established symptom of thyroid hormone dysfunction. Usually patients with low thyroid hormones also have deficient secretion of growth hormone, and may have deficient secretion of the gonadotropins, called LH and FSH, which stimulate puberty and reproduction, and ACTH, which is necessary for cortisol and hydrocortisone secretion by the adrenal gland. (125)
[In the above context it should be noted, that aluminum fluoride also mimicks the inhibitory action of melatonin.(126)]
From the same article: **** Fluoride poisoning can be observed in large groups of the population, in the form of hypothyroidism.****
Fluoride poisoning can be observed in large groups of the population, in the form of hypothyroidism. In 1995 one publication (see 127) on hypothyroidism reported that 41 percent of women had fatigue for no obvious reason in the past year. Of these women, 57 percent said they experience fatigue three or more times a week. More than half of women (51 percent) had experienced three or more symptoms commonly associated with hypothyroidism over the past year.
Other symptoms/associations of hypothyroidism include loss of libido, carpal tunnel syndrome, arthritis, lupus, fibromyalgia, memory loss, etc.