The field of behavioral genetics specializes in the consequences of heredity on behavior

What is the name of the hormone that is high at the onset of puberty and affects appetite, especially in girls?

estrogen cortisol lipids leptin

In a recent experiment conducted on 10- to 14-year-olds and their food choices

junk food was overwhelmingly selected over healthy food. junk food was mostly selected along with one small healthy food item. healthy food was selected if it was cheaper than unhealthy food. healthy food was consistently selected regardless of peer influence or price.