If you have a telerance for alcohol it can increase the likelihood of drinking more or a drug overdose.
Tolerance, Addiction, Dependence
Brain changes don't lead to alcoholism. Alcoholism can lead to brain changes.
Stage 1
Alcohol tolerance refers to responses to the effects of ethanol in alcoholic beverages. This includes the speed of recovery from insobriety and resistance to alcoholism.
If you drink to much
Alcoholism.
High tolerance for alcohol is one of the first signs of developing alcoholism. The problem has already begun at that point.
Tolerance refers to the blood alcohol level necessary to cause impairment of mental and physical function. As alcoholism develops, the ability to tolerate alcohol also increases.
You have developed a tolerance to the drug, and are progressing toward chronic alcoholism.
You will rely on alcohol to relieve you pain and stress.
Chronic alcoholism can lead to dilated cardiomyopathy which consequently can result in congestive heart failure.
There are a number of alcohol agencies around the world. In the US, the lead agency is the National Institute on alcohol Abuse and Alcoholism (NIAAA).