hi friend, have you know about alcoholism
Yes, I do.  It's a very broad term that applies to the affects of drinking alcohol.  Its terrible
Yes one of my friend affected in that .It is also commonly referred to as alcohol use disorder
Alcohol use disorder was divided into two types, alcohol abuse and alcohol dependance.  What type was your friend?
And also have three types mild , moderate and severe. My friend is a mild person.
That's confusing.  Is he a binge drinker, where he drinks a lot of alcohol in a short amount of time?
Yes he have more stress so he drink daily bases. Now he is mild stage
How long do his binge's usually last?  Some binge drinkers can go for days, or even weeks.
Yes will drink more than 2 days continously
nervous system and peripheral nervous system can occur from chronic alcohol abuse. Even light and moderate alcohol consumption increases risk for certain types of cancer. 
The long-term use of alcohol is capable of damaging nearly every organ and system in the body. The developing adolescent brain is particularly vulnerable to the toxic effects of alcohol. In addition, the developing fetal brain is also vulnerable, and fetal alcohol spectrum disorders (FASDs) may result if pregnant mothers consume alcohol.
The inverse relation in Western cultures between alcohol consumption and
which may result in violence or accidents. About 3.3 million deaths (5.9% of all deaths) are believed to be due to alcohol each year.
Alcoholism, also known as "alcohol use disorder", is a broad term for any drinking of alcohol that results in problems. It was previously divided into two types: alcohol abuse and alcohol dependence. In a medical context, alcoholism is said to exist when two or more of the following conditions is present: a person drinks large amounts over a long time period