Seeing as how a dentist practices dentistry, I believe the answer would be a dentist. Hope this helps!
Seeing other people online that you may persevere as prettier than you or having a better body can have make you perceive yourself as ugly and not good enough.
<span>The respiratory system of the body can be injured by volcanic ash that comes from a volcanic eruption. You can inhale this ash and it can get into your body and system and mess with your inner organs. I don't see how this can happen with boulders and rocks, as they are way too big to be inhaled the way ash can be.</span>