The legal age for drinking alcohol in South Africa is 18. As it is always stated in advertisements either on tv, radio, magazine or anywhere  "Not for sale for persons under the age of 18, drink responsibly". I greet you all my name is Karabo Dipela and I am a public health pharmacist. Alcohol intake mostly affects the liver and kidneys which is one of the most important organs required for functioning in your body . Alcohol has unpleasant effects in your CNS system. The CNS in this case I will be referring to the brain. If you are of legal age and you're a drinker then you should know that alcohol should be drank to a limit -Do not abuse alcohol cause it has unpleasant effects such as liver impairment(like I mentioned that the liver and kidneys are  your most important organs needed for functioning), causes sedation, nausea, vomiting, seizures and many more effects. Alcohol in the body reaches blood alcohol concentration with varying unpleasant effects that get fatal. The lowest BAC can be 50-100mg/dL with sedation, slower reaction time as effects and the highest BAC >400mg/dL can lead to complete destruction of your breathing which will lead to death. The BAC is different for every person. So there is never a "safe amount of glasses to drink" . As an individual you are developing a problem if you drink everyday(so when you're not fine emotionally you drink, you start to develop a problem when you resort to drinking when you have stress or can't deal with anything without being intoxicated. Seek help immediately. If you also see a friend or someone having a problem with controlling their alcohol intake,help that person by speaking to him/her and letting them realise they have a serious alcohol abuse that must be dealt with.