My uncle was a med lab tech in the hospital. They still had "no mouth pipetting" signs up in the late 90s.

Organisms need some oxidizing agent to respire. We use oxygen because it's very highly reactive and thanks to photosynthesis is goddamn everywhere.

in my defence, am sleeby ouppy 😌

Better than asking a dentist is asking a dental hygienist. Dentists are dental surgeons primarily concerned with solving specific problems with surgical intervention. Hygienists are oral health nurses concerned with preventive care and overall health and wellbeing.

And listen to your hygienist. There is no cure-all toothpaste for everyone (eg not everyone needs anti-sensitivity toothpaste, the risk of erosion in whitening toothpastes might be a concern for some people, some people need higher fluoride concentrations, etc)

If it's fluoride free then it doesn't do much. Get toothpaste with actual medicinal ingredients

When avoirdupois pounds and pounds-force are used together I'm pretty sure it's more common to use 'lb' for avoirdupois pounds and 'lbf' for pounds-force.

Maximum is 100 °F and minimum is 95 °F. Those seem pretty arbitrary to me

beef...

"Had to hand-lower it in to prevent splashback. WorkSafe you know"

good ol' nominal typing

I should call her...

Pipetting liquid glowstone