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.
The important thing to note about eating disorders, I explain, is that they are âconditions defined by abnormal eating habitsâ¦to the detriment of an individualâs physical and mental health.â. That is, eating disorders are not diets. But I realize now that saying that an eating disorder is categorized by a loss of self-control and an inability to think and behave rationally â because itâs a mental illness â isnât enough.