We all know that buzzed feeling you get after a few drinks but why does this happen and why does too much alcohol have the opposite effect on us?
Alcohol increases the amount of dopamine in your brain, creating a feeling of pleasure.As you drink more alcohol, your blood-alcohol concentration rises and different parts of your brain are affected.
Alcohol then affects your cerebral cortex and alters your thinking and senses. It also affects your cerebellum, throwing off your balance. The hypothalamus and pituitary gland are affected influencing things like your sex drive and the medulla is also affected, impacting your heart rate, breathing etc. Read more here.