The mass of an atom relative to that of carbon-12. This is approximately the sum of the number of protons and neutrons in the nucleus. Where more than one isotope exists, the value given is the abundance weighted average. Isotopes. Atoms of the same element with different numbers of neutrons.
Eating disorders. Eating disorders are abnormal eating habits that can threaten your health or even your life. They include: Anorexia nervosa: Individuals believe theyâre fat even when theyâre dangerously thin and restrict their eating to the point of starvation.
Binge eating disorder is an illness where people overeat on a regular basis. A binge is an episode of excessive eating or drinking. People who binge eat very large quantities of food over a short period of time, even when they're not hungry. This page covers: Signs of binge eating disorder.