Moderate is good but the higher it is the more dangerous they are. People become addicted to drugs and drink when they constantly have the high adrenaline level in their body.
That's likely the effect of gambling addiction as no gambler would just gamble all day, sometimes this addiction would not allow us to sleep since we don't have a peace of mind, therefore these addicts will try do drugs and drink so they can be calm and they'll be able to sleep when they are too drunk.
That would kill not only the finances but the health as well, people think gambling addiction is not a serious disease but once they are in the situation they will fully understand how it feels, others even committed a crime because of gambling addiction, so this is something that we should pay attention on how to get out of it once we are still in the early stage as if it goes worst, we know what would possibly happen.