Impact of drinking alcohol to your bodies are :
1. Causes nerve damage
2. Causes heart problems
3. Disrupt the body's metabolic system
4. Lowering intelligence
5. Disrupt the liver function
6. Causes high blood pressure
And I think there are many more effects of alcohol on health
And I've seen a lot of troubling drunkards, miserable drunks on the streets. Drunks are out of control. Seeing all that, it was enough for me to stay away from alcohol. It proves that alcohol can ruin our minds.
I agree with you that all the above problems will be seen if alcohol is been consumed everyday and in higher quantity. The drunkards which you have seen on the roads will only have the work of drinking and will not have any kind of job. They will just take money from their house to drink.
However, there are people who go to work regularly and then drink, many have it only once a week. These have a healthy life without any problems. The most important thing which all drinkers must follow is not to skip their food after drinking.