That spotty shower head in your bathroom is just as gross as it looks. In fact, one study reveals that one-fifth of shower heads tested were contaminated with Mycobacterium avium, which can cause serious respiratory health issues.
The good news? Keeping the outside of your shower head clean isn’t difficult. Simply fill a sandwich bag with white vinegar and affix it to your shower head with rubber bands, leaving it to soak overnight. And while many may doubt how effective anything short of bleach can be at killing bacteria, research from the American Society for Microbiology suggests that the acetic acid in vinegar significantly diminishes bacterial counts, even for hard-to-beat germs like tuberculosis.