
the heat of this season causes many people to "drown" in sweat, especially at night or while sleeping. Experts have discovered that sweating at night can lead to the "housing" of thousands of bacteria in pillowcases.
"Pillowcases can be considered dirtier than toilets. The good news is that these bacteria are very likely to be with you from start to finish, so they are not very harmful," says doctor Gareth Nye.
"In terms of bacteria, some studies have shown that there is a colony of 17,000 bacteria on a pillowcase compared to a toilet seat," Nye added. Whereas, after a week if you haven't washed or changed the cases, about three million bacteria can stay in them.
During the summer, many people lose between 500 and 700 millimeters of sweat in one night, of which about 200 millimeters remains on the sheets or pajamas. If they are not washed or cleaned in time, this leads to problems such as spiders or fungi, and especially the latter "bloom" in dead skin cells and can cause asthma or allergies.

"One study found that a typical pillow has up to 16 different types of fungi that affect people's health," adds Nye.
And while we all try to make our bed and pillows in the morning before leaving for work, we actually risk trapping moist air under the sheets, which leaves more room for infections.
Experts agree that people should leave the bed loose during the summer and change the sheets often.
Dr. Nye suggests avoiding polyester materials and replacing them with cotton sheets, which are even more hygienic.
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Source: New York Post