A lot of dental health is genetic unfortunately for most people. There are people who brush, floss, and mouthwash 2-3 times a day religiously and still end up needing root canals, and there are people who do very little dental hygiene and have perfect teeth their whole lives.
Feet is one of those things you don't understand until you rely on them. As a soldier I learned to be very diligent about foot care. A little foot fungus seems harmless until you're on your feet in boots 18 hours a day every day and then it can really fuck you up to the point that the skin is literally falling off the bottoms of your feet.
