Instead of the digestive energy being focused at the base of your stomach (where you feel the burning sensation of hunger), detox shifts your digestion into a metabolic state. (annaveda.com)
Drugs that alter sensations of hunger or thirst, or reduce sensitivity to pain, or simply make an animal more active could all improve performance. (newscientist.com)
These hormones and peptides act on specific brain centers to affect sensations of hunger and appetite. (mindbodygreen.com)