Explanation: Kevin will find it very difficult to reduce his use of alcohol because he has been addicted to the use of alcohol. His addiction has made him to always want to get an alcohol, or trying to recover from the effect of an alcohol which he took.
Kelvin behavior has showed that he is an Alcoholic, because he has been addicted to the intake of alcohol regularly.
Kevin severity is very high, as this will damage his system cause more Alcoholic effect on him.