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.
Selenium benefits include the ability to fight the aging process and help the immune system by reducing free radical damage. Selenium has a synergistic effect with other antioxidants like Vitamin E, enabling the body to fight oxidative stress and to defend against cancers like prostate and colon cancer.