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.
An eating disorder is an illness that leads people to overeat, starve themselves, or adopt other unhealthy behaviors surrounding food and body weight. These disorders -- binge eating, anorexia nervosa, and bulimia -- are not simply bad habits.pisodes of extreme overeating are the hallmark of this illness, which is the most common eating disorder. People who struggle with it are usually overweight or obese -- male or female. In contrast with bulimia, this illness does not lead people to purge (vomit), fast, or over-exercise.