Did you know that toothbrush has a lot of germs and bacteria and could cause you sick or gum disease. Even though, you rinse it with water after brushed your teeth. Throw your toothbrush in the microwave and heat it up for 15 seconds (don’t heat it too long, will damage your toothbrush) every week to get rid of bacteria. If you use an electric toothbrush, just take the head out and put it in the microwave. Most dentists advise replacing the toothbrush every 6 months and after you had a cold or other illness.