Alcohol can affect several parts of the brain, but, in general, contracts brain tissues, destroys brain cells, as well as depresses the central nervous system. Excessive drinking over a prolonged period of time can cause serious problems with cognition and memory.

What system does alcohol affect?

(The major body systems affected by alcohol are the digestive, central nervous, cardiovascular, and endocrine systems. Alcohol does not digest in the stomach like most foods or liquids; it goes straight into your bloodstream. Alcohol affects every body system and many organs as it travels in your blood.)

What part of the central nervous system is affected by alcohol?

The brain, in particular, is significantly affected by alcohol causing issues with cognition and memory. Alcohol affects neurotransmitters in the brain, such as glutamate, which governs brain function. If you drink enough alcohol, its depressant effects can reduce your breathing and heart rate.