The drugs quickly activate the brain's reward system - a primitive neurological circuit buried beneath the cortex - and release dopamine. This neurotransmitter, which is central to pleasure and desire, sends a message to the brain: This is an important experience worth remembering. Through this, the body begins to ask for the sensation released by dopamine, causing the body to become addicted to the substance.
Alcohol, for example, acts on the nervous system by changing behavior and may even lead to addiction. Its consumption initially promotes disinhibition, relaxation and euphoria. In a second moment the depressing effects begin to appear, such as speech and reasoning difficulties, slow reflexes, worsening of motor coordination and behavioral alteration. A laughing alcoholic may suddenly turn into a violent subject. These combined effects can cause a large number of problems, such as domestic violence and traffic accidents, many of them with death or permanent disability.
The answer is <u>"Chorionic Villus sampling".</u>
Chorionic villus sampling (CVS) is a prenatal test in which an example of chorionic villi is expelled from the placenta for testing. The example can be taken through the cervix (transcervical) or the abdominal wall (transabdominal).
Chorionic villus sampling can give data about your child's hereditary makeup. For the most part, chorionic villus examining is offered when the test outcomes may significantly affect the administration of the pregnancy or your longing to proceed with the pregnancy.
Answer:
Negative
Explanation:
Enemies usually refer to bad guys. So if it is a "common enemy" then it is a common bad guy that everyone knows about. It can also mean that you and someone else share an enemy, but that is stilll negative.
