Some people have more of a gag reflex than others. If when you brush, you occupy your mind with something else while still using the proper brushing technique, you won't focus on gagging. For example, try sitting in a chair when brushing, straighten one leg, then lift and hold it in the air.
Antibiotic Resistance Threats in the US. Antibiotics are powerful tools for fighting illness and disease, but overuse of antibiotics has helped create bacteria that are outliving the drugs used to treat them. Antibiotic resistance is a quickly growing, extremely dangerous problem. World health leaders have described antibiotic-resistant bacteria as nightmare bacteria that pose a catastrophic threat to people in every country in the world.
An antibiotic is a substance used to kill bacteria. If you're coughing up green stuff, the doctor might give you an antibiotic to fight the infection. Since the prefix anti- means fighting, opposing, or killing, and bios is the Greek word for life, antibiotic literally means life-killing. But doctors prescribes them primarily to kill the bacteria responsible for infections in the body. (A virus, on the other hand, cannot be treated with an antibiotic, so doctors are always making a distinction between a virus and a bacterial infection.) You can also use antibiotic as an adjective.