Iodine is an essential trace mineral integral for the formation of thyroid hormones, which are needed for growth and development and metabolic processes throughout the body.

Premenstrual syndrome (PMS) is a common health condition experienced by up to 75% of women of reproductive age. PMS is a group of symptoms, both physical and emotional, experienced by a woman in the two weeks leading up to menstruation, also known as the luteal phase. With symptoms usually subsiding shortly after menstruation begins.  

In some cases PMS can develop into premenstrual dysphoric disorder (PMDD). PMDD is a more severe form of PMS, effecting about 3-6 % of women. PMDD be so debilitating that it impacts one's quality of life. Women who have had major depression are more at risk than others to experience PMDD.

There are many different causes for hair loss through out life, such as post childbirth or through menopause for women and most men will lose some hair by the time they reach adulthood. But while some hair loss is considered normal, excessive prolonged loss is not. 

Of the many health conditions that can cause excessive hair loss and thinning, thyroid conditions are one of the most common. Severe and unmanaged hypothyroidism and hyperthyroidism can both result in hair loss, thinning or even balding.