How long can a human live without water How long can human live without food? A human can't live without food for 3 or 4 days (however your body type is,) and a human can't live without water for 2 or 3 days.
Cavities refer to tooth decay, which occurs when specific types of bacteria produce acid that destroys the toothâs enamel and its underlying layer, the dentin. Signs & Symptoms. Cavity symptoms include: 1  Toothache. 2  Sensitivity to sweet, hot or cold foods or drinks.
Donât worry this wonât get too technical. A cavity occurs when the acids formed by bacteria start to break down and form a âcavityâ in your tooth. The catch is you wonât feel this early process happening. You have a layer of insulation, enamel, that is the first line of defense.Yeah for enamel! (as an aside, flouride hardens your enamel .). The scenerio: To your surprise you go to the dentist and have a small cavity but canât feel anything different.Quite possibly, you are catching it early and the cavity is still in the enamel where it can be fixed really easily. Usually without even getting numb. Medium sized cavities.he catch is you wonât feel this early process happening. You have a layer of insulation, enamel, that is the first line of defense. Yeah for enamel! (as an aside, flouride hardens your enamel .). The scenerio: To your surprise you go to the dentist and have a small cavity but canât feel anything different.