The Company(Season 7, Episode 20) ION. Morgan's missing cousin, Cindi, reappears, and Morgan must come clean about a lie he told concerning her. In addition, the BAU reopens the investigation into Cindi's disappearance.
Selenium in biology. Although it is toxic in large doses, selenium is an essential micronutrient for animals. In plants, it sometimes occurs in amounts toxic as forage, e.g. locoweed. Selenium is a component of the amino acids selenocysteine and selenomethionine.
Selenium as a supplement. Selenium is one of several nutrients known to have antioxidant properties, meaning selenium plays a part in chemical reactions that stop free radicals from damaging cells and DNA. Free radicals are unstable molecules from environmental toxins, or from byproducts of the human body's metabolism.elenium supplements in particular are purported to help people with asthma, and reduce the risk of rheumatoid arthritis and cardiovascular disease. Selenium levels drop with age, so some have claimed selenium can slow the aging process, cognitive decline and dementia.