That addictive behaviors produce the same brain responses that follow drug abuse. in both cases, several regions deep inside the brain release a chemical called which attaches itself to receptors throughout the brain that in turn produce an intense flush of pleasure.

a researcher conducts an experiment on the secretion of a particular hormone in mice. scientists inject mice with a substance that stimulates the production of the hormone. the scientists then test the levels of hormones produced by the mice. the tool used to measure the hormones consistently detects the levels at 10 points lower than the actual hormone levels in the mice. this tool makes measurements, but the measurements aren't .

explanation:

no u