The Importance of Iodine: From Discovery to Medical Applications

The video tutorial discusses iodine, an essential nutrient with a metallic form, discovered in 1811 by Bernard Courtois. It covers iodine's chemical properties, its discovery process, and its naming by Gay Lussac. The tutorial highlights natural sources of iodine, such as seaweed and dairy products, and its crucial role in synthesizing thyroid hormones. Iodine deficiency can lead to goiter. Additionally, iodine's applications in photography and medicine, including its use in antiseptics, are explored.

Explain the significance of iodine in the human body.

What is goiter and how is it related to iodine deficiency?