Andrew Huberman· PhD
So this pleasure pathway or these circuits for pleasure are very what we call reinforcing. In fact, animals and humans will work hard to get stimulation of these brain areas even more than they will work to obtain sex, drugs, or even if they are addicted to a particular drug and they are in a state of withdrawal, the ultimate state of craving, if given a choice, a person or an animal will select to have stimulation of this pleasure pathway instead of the drug itself.