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 a serious eating disorder in which you frequently consume unusually large amounts of food and feel unable to stop eating. Almost everyone overeats on occasion, such as having seconds or thirds of a holiday meal. But for some people, excessive overeating that feels out of control and becomes a regular occurrence crosses the line to binge-eating disorder. When you have binge-eating disorder, you may be embarrassed about overeating and vow to stop. But you feel such a compulsion that you can't resist the urges and continue binge eating. If you have binge-eating disorder, treatment can help.