Easy Drug Rehabilitation

I’m into getting into a healthier lifestyle. That also includes not drinking or cutting down on alcohol.

Now, in social situations, when I’m not too much acquainted with the people sitting, I might be asked to drink. And I wouldn’t feel like explaining everything everytimeespecially if some people are not open-minded enough.

Now, I would not deal with people I don’t like then, but there might occur some business or social situations where ignoring the people is not useful at that time.

What are some good excuses in social and business situations to explain why you drink so little or you don’t drink.

I thought, maybe something liver related? Do you know of any (preferably innate) liver diseases that would prevent someone from drinking alcohol and stuff but would not affect stuff in many other ways?
Or maybe something else?

Some permanent diseases would do.
Anyway, any ideas anyone?

Thanks.