Period 5 element dimethyl telluride, (CH)Te, a gas with a garlic-like odor which is exhaled in the breath of victims of tellurium toxicity or exposure. Iodine is the heaviest essential element utilized widely by life in biological functions (only tungsten, employed in enzymes by a few species of bacteria, is heavier). Iodine's rarity in many soils, due to initial low abundance as a crust-element, and also leaching of soluble iodide by rainwater, has led to many deficiency problems in land animals and inland human populations. Iodine deficiency affects about two billion people and is the leading preventable cause of intellectual disabilities. Iodine is
Aromatase deficiency the low oestrogen will predispose those with the condition to osteoporosis. Symptoms are generally manifested in adulthood: During gestation, a baby with Aromatase Deficiency can cause a mother to become virilised by causing the deepening of the voice, cystic acne, cliteromegaly, and hirsutism. The mother also has an increased level of circulating testosterone. However, the symptoms normally regress post-partum. Aromatase deficiency is an autosomal recessive disease with most of the mutations occur along the highly conservative regions of the gene. Both homozygous and heterozygous mutations have been identified along various location of the exon on the P450 arom (CYP19) gene