Which hormone do scientists believe works on the hypothalamus to stimulate appetite and eating?

ghrelin

Explanation:

"In the USC study, researchers found that ghrelin communicates with neurons in the hippocampus to stimulate appetite. These neurons then communicate with another part of the brain, the hypothalamus, to produce the molecule orexin—which further promotes excessive eating."

treatments and vaccines : )

try going vegan or the palyo diet!