Hat glasses chaps gloves boots are all good and to be used. But they are add ons to your best defence which is your brain. Use it 1st. A test here is to try cutting with a saw butt naked,, yeah weird but just consider how careful you will be, very very careful. Try to keep this focus as you go.
PPe is excellent but its taking away our safe thinking minds. We put it on and think we are bullet proof, I seen this in sports and work places but the accident stats still keep climbing each year.
try to be smarter than the bit of wood ya cutting.