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.
Eating disorders and other mental health issues. A person with an eating disorder will often be diagnosed with another mental health problem. Dual diagnosis or co-morbidity refers to the presence of one or more diseases or disorders in one individual. There is a high level of co-morbidity of psychiatric illnesses with eating disorders.