Answer:
A depressant, or central depressant, is a drug that lowers neurotransmission levels, which is to depress or reduce arousal or stimulation, in various areas of the brain. Depressants are also occasionally referred to as "downers" as they lower the level of arousal when taken.
Explanation:
Many STDs don't have obvious symptoms. Lots of people don't even know they have an STD until their doctor discovers it. Even a bump that looks like an ingrown hair could be something more. Getting a prescribed antibiotic from a professional would be way more accurate at treating the STD than one you would get from the drug store
One way to prevent this from happening would be, in general, to not go ice skating. She also could have worn knee pads.
