GABA is a neurotransmitter. Drinking slows cell firing by increasing GABA action. It messes with the brain's capacity to digest facts.
While you don't need the wine's sugar, it won't spike your blood sugar. Alcohol lowers blood sugar, producing weakness, dizziness, and heart palpitations.
Most wines have 12% alcohol by volume (ABV). Regular beer has 5% ABV. Some cabernets, zinfandels, and shiraz wines may be 14% ABV.
Binge drinking raises systolic and diastolic blood pressure. It raises your pulse 15 bpm quicker than when sober.
Your body burns alcohol before other fuels. That implies consuming a bottle of wine will shut down fat-burning for a time.
It achieves this via boosting hypothalamic and other eating-regulatory brain activity. Drinking increases food smell sensitivity.