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  2. Fluoride toxicity - Wikipedia

    en.wikipedia.org/wiki/Fluoride_toxicity

    Referring to a common salt of fluoride, sodium fluoride (NaF), the lethal dose for most adult humans is estimated at 5 to 10 g (which is equivalent to 32 to 64 mg elemental fluoride/kg body weight). [ 2 ] [ 3 ] [ 4 ] Ingestion of fluoride can produce gastrointestinal discomfort at doses at least 15 to 20 times lower (0.2–0.3 mg/kg or 10 to 15 ...

  3. Opposition to water fluoridation - Wikipedia

    en.wikipedia.org/wiki/Opposition_to_water...

    Antifluoridationist literature links fluoride exposure to a wide variety of effects, including AIDS, allergy, Alzheimer's disease, arthritis, cancer, and low IQ, along with diseases of the gastrointestinal tract, kidney, pineal gland, and thyroid, though there is no scientific evidence linking fluoridation to these adverse health effects. [70] [71]

  4. Pineal gland - Wikipedia

    en.wikipedia.org/wiki/Pineal_gland

    The pineal gland (also known as the pineal body [1] or epiphysis cerebri) is a small endocrine gland in the brain of most vertebrates. It produces melatonin , a serotonin -derived hormone , which modulates sleep patterns following the diurnal cycles . [ 2 ]

  5. Skeletal fluorosis - Wikipedia

    en.wikipedia.org/wiki/Skeletal_fluorosis

    Most patients with skeletal fluorosis show side effects from the high fluoride dose such as ruptures of the stomach lining and nausea. [4] Fluoride can also damage the parathyroid glands, leading to hyperparathyroidism, the uncontrolled secretion of parathyroid hormones. These hormones regulate calcium concentration in the body.

  6. Pineocytoma - Wikipedia

    en.wikipedia.org/wiki/Pineocytoma

    Pineocytoma, is a rare, benign, slowly growing tumor of the pineal gland. The pineal gland is a small endocrine gland close to the center of the brain that secretes melatonin into the bloodstream. Pineocytomas can cause pressure and fluid build-up in the brain. They are more common in adults.

  7. Lamprey - Wikipedia

    en.wikipedia.org/wiki/Lamprey

    The pineal gland, a photosensitive organ regulating melatonin production by capturing light signals through the photoreceptor cell converting them into intercellular signals of the lamprey is located in the midline of its body, for lamprey, the pineal eye is accompanied by the parapineal organ.

  8. Could fluoride in pregnancy affect kids' development? A study ...

    www.aol.com/news/could-fluoride-pregnancy-affect...

    Kids whose mothers had higher levels of fluoride in their urine were 83% more likely to exhibit a range of neurobehavioral issues, including anxiety, emotional reactivity and physical complaints ...

  9. Corpora arenacea - Wikipedia

    en.wikipedia.org/wiki/Corpora_arenacea

    Corpora arenacea (singular: corpus arenaceum, [1] also called brain sand or acervuli [2] [3] or psammoma bodies [4] or pineal concretions [4]) are calcified structures in the pineal gland and other areas of the brain such as the choroid plexus. Older organisms have numerous corpora arenacea, whose function, if any, is unknown.