The traditional medical approach to diabetes is simply to manage it after it has been diagnosed. Because there isn't a cure, the emphasis is on keeping blood sugars as close to normal as possible -- usually with exercise and weight loss coupled with medication -- and dealing with complications as they arise.
Alcohol Affects Reaction Time. A delay in reaction time while under the influence of alcohol is one of the key reasons that it is dangerous to drive a vehicle after drinking. Alcohol impairs many cognitive functions, but until recently it was undetermined how the built-in control systems of the brain were affected by alcohol.
Alcohol has been found to affect over 100 unique receptors in the brain. However, many systems in the brain are interrelated. It's not clear if alcohol directly acts on all those receptors or if they're a downstream result of its action elsewhere. The smoking gun would be to isolate a receptor and show that alcohol affects it. If alcohol is a depressant, it should facilitate GABA receptors.