It’s found if you wash your hands a lot and put hand sanlitizer on your hands, it cuts your chances of getting colds so much! Plus, it’s not good to have chemicals from lab work on your hands.

When working in a laboratory, though, there’s an entirely separate reason: the fact that the laboratory is full of chemicals (some of which are corrosive, staining, or otherwise just plain wonky) means that it’s better to keep yourself clean: you don’t know when you’ve got some deadly chemical on the hand you’re going to be eating that sandwich with later.

Also, since the laboratory is a (somewhat) sterile environment, you also risk contaminating other things you touch while in there with chemicals you’ve handled before. Remember that contaminated apparatus cannot register accurate results, and that means you’re probably going to get some inaccurate measurement, which in turn equals a bad grade =O (assuming it’s in school. In the workplace, expect more disastrous results =D)

=3 Hope this helps.

Certain bacteria & other micro organisms can spread their infections through u if u do not wash your hands.