Ahstillwell (talk | contribs) (New page: '''Iodine''' is a nonmetallic element belonging to the halogen group; it is atomic number 53. It is a black crystalline substance that lets off a violet vapour when boiling. Iodine is pa...) |
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'''Iodine''' is a nonmetallic element belonging to the halogen group; it is atomic number 53. It is a black crystalline substance that lets off a violet vapour when boiling. |
'''Iodine''' is a nonmetallic element belonging to the halogen group; it is atomic number 53. It is a black crystalline substance that lets off a violet vapour when boiling. |
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| − | Iodine is part of the hormones triiodothyronine (T3) and thyroxine (T4) and helps the thyroid gland function normally. The daily requirement for adults is 100 to 150 mcg, but growing children, adolescents, [[pregnancy|pregnant]] women and people under emotional stress require more. Iodine deficiency causes goiters and hypothyroidism in people of all ages and in young children may result in cretinism. |
+ | Iodine is part of the hormones triiodothyronine (T3) and thyroxine (T4) and helps the [[thyroid]] gland function normally. The daily requirement for adults is 100 to 150 mcg, but growing children, adolescents, [[pregnancy|pregnant]] women and people under emotional stress require more. Iodine deficiency causes goiters and hypothyroidism in people of all ages and in young children may result in cretinism. |
Revision as of 04:24, 29 May 2008
Iodine is a nonmetallic element belonging to the halogen group; it is atomic number 53. It is a black crystalline substance that lets off a violet vapour when boiling.
Iodine is part of the hormones triiodothyronine (T3) and thyroxine (T4) and helps the thyroid gland function normally. The daily requirement for adults is 100 to 150 mcg, but growing children, adolescents, pregnant women and people under emotional stress require more. Iodine deficiency causes goiters and hypothyroidism in people of all ages and in young children may result in cretinism.