That's just blogging
I'm a bit surprised at the responses here. Nusca is a journalist, and a well educated one. He's reporting on a not surprising or scientifically interesting finding that is however very relevant to daily life.
The bacteria in your shower head is mostly of concern to the elderly and those with compromised immune systems. Accepted.
A crusty shower head should be cleaned or replaced. The crustyness comes from calcium and iron deposits not bacteria, but it dramatically increases the surface area on bacterial scale. Makes sense, but as above it is mostly relevant to those with weak immune systems.
This is what I got from the post. You expect more for free online? You can get a "post" on a blog for free and the author gets paid pennies to write it. Or you can actually support real journalism, buy a newspaper or online subscription to one, and let journalists do real journalism for a living wage.
