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The most common treatment, which is cheap and widely available, is to apply a clear, bitter-tasting nail polish to the nails. Normally denatonium benzoate is used, the most bitter chemical compound known. The bitter flavor discourages the nail-biting habit. [12] Behavioral therapy is beneficial when simpler measures are not effective.
Geophagy also occurs in humans and is most commonly reported among children and pregnant women. [5] Human geophagia is a form of pica – the craving and purposive consumption of non-food items – and is classified as an eating disorder in the Diagnostic and Statistical Manual of Mental Disorders (DSM) if not socially or culturally appropriate ...
When humans eat bad food (e.g., spoiled meat) and get sick, they may later find that particular food aversive. The food does not have to cause the sickness for it to become aversive. A human who eats sushi for the first time and who happens to come down with an unrelated stomach virus may still develop an aversion to sushi. Even something as ...
Whether the spice they seek is fiery or acidic and sour, humans can be drawn to the perceived danger of extreme foods. Eating sour or spicy foods is more about your brain than palate, scientists ...
Toxic and bitter compounds do, however, exist in different diets at different frequencies. [5] Sensitivities to bitter compounds should follow the requirements of different diets logically, as species that can afford to reject plants due to their low plant diet ( carnivores ) have a higher sensitivity to bitter compounds than those that ...
Aversion training involves associating the ruminating behavior with negative results, and rewarding good behavior and eating. Placing a sour or bitter taste on the tongue when the individual begins the movements or breathing patterns typical of his or her ruminating behavior is the generally accepted method for aversion training, [15] although ...
The most frequently reported disgust-like behavior in non-human primates is expelling bad-tasting food items, but even this behavior is not very common. This might be because primates effectively avoid potentially bad-tasting food items, and food that is avoided cannot be expelled, hence the low observation rate of this behavior. [ 53 ]
Grazing is a human eating pattern characterized as "the repetitive eating of small or modest amounts of food in an unplanned manner throughout a period of time, and not in response to hunger or satiety cues". [1] Two subtypes of grazing have been suggested: compulsive and non-compulsive.