The medications we use to treat HIV are called antiretrovirals (ARVs). ARVs work best when taken every day at the same time. They make it a lot harder for HIV to make copies of itself and this makes ARVs an option if we are or are not living with HIV. If we are living with HIV they reduce the amount of HIV we have in our bodies. The lower our viral load, the less HIV can harm our immune system. If we are able to take ARVs regularly, they prevent HIV from developing into AIDS. If our viral load becomes very low, we cannot pass HIV on to our sexual partners.