Exchange rate. This is the amount of foreign currency that will be generated for every dollar you send. For example, a service might have a rate of 12.48 Mexican pesos per dollar. So if you send $200, it'll convert to 2,496 pesos.
Selenium is a nutrient that the body needs to stay healthy. Selenium is important for reproduction, thyroid gland function, DNA production, and protecting the body from damage caused by free radicals and from infection.
A single nutrient - selenium - has been shown to hold great promise. in the war against cancer, and may also help to combat conditions as diverse. as infertility, dementia, low thyroid function and Aids. On Christmas Day 1996, a scientific study was published which demonstrated. selenium's ability to halve deaths due to some cancers.