What happens in your brain when you ingest
a drug? Some drugs, such as marijuana and heroin, have a similar structure
to chemical messengers, called neurotransmitters, which are naturally produced
by the brain. Because of this similarity, these drugs are able
to “fool” the brain's receptors and activate nerve cells to send
abnormal messages.
A study conducted by Dr. Jodi Gilman at Massachusetts General Hospital-Harvard...