Researchers at Northwestern University studied two things that most people use everyday—their toothbrush and showerhead—to see what was living in each.

Your bathroom is teaming with biodiversity. Microbiologists have discovered a rainforest of unknown microbial species from your toothbrush to your showerhead. But should we be concerned? In a new study published in Frontiers in Microbiomes,

The warm, damp environments of your showerhead and toothbrush are the perfect breeding ground for microbes, and a new study has identified hundreds of viruses that live there, showing the vast biodiversity to be found in the average home.