Are you cleaning your water bottle enough?
(bbc.com)
Every time you take a sip from your water bottle, you are depositing bacteria inside and over the course of a day these can multiply by the millions. Here's what scientists say you can do about it.
Every time you take a sip from your water bottle, you are depositing bacteria inside and over the course of a day these can multiply by the millions. Here's what scientists say you can do about it.