Now that you fully understand what protein does and why your daily protein intake plays such an important role in losing fat, building muscle, and just being healthy, youâre probably wondering how much of it you should eat per day. Thatâs a good question.
Appetite is psychological, dependent on memory and associations, as compared with hunger, which is physiologically aroused by the body's need for food. Lack or loss of appetite, known as anorexia, may be due to subjectively unpleasant food, surroundings, or company, or a symptom of either a physical disorder or an emotional disturbance. Excessive appetite may be an indication of either a metabolic disorder or an emotional disturbance.
This notion is supported by the etymology (the Latin anorexia derives from the Greek privative prefix an and oregein, to reach after, desire), as well as by the clinical history: one of the first formal applications of the term in a clinical context invoked absence of appetite as anorexia's defining feature, stating that [t]he want of appetite is, I believe, due to a morbid mental state (Gull 25).