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.
A cavity is a carved-out space inside something solid like a wall or a tooth. If you have a cavity, you have a hole in your tooth, and itâs time to go to the dentist for a filling. Lucky you. Doctors sometimes refer to various internal body parts as cavities, such as the abdominal cavity, which includes the stomach and other hollow parts of the abdomen. You are more likely to hear the word at the dentistâs office, when she finds a cavity, which is a space in your tooth that's been eaten away by decay.