If you find yourself doing something because you have to do it and not because you want to or because you like doing it, you might be suffering from addiction. Your uncontrollable dependence on substances like alcohol and drugs or behaviors like gambling is addiction. One common feature is that the compelling behavior interferes negatively with how your life would function. 

Although substance and behavioral abuse may be similar, they also have their differences. Behavioral addiction is dependence on the feeling you get from an activity. Substance addiction, however, is an excessive dependence on a particular substance such as drugs, alcohol, or caffeine. 

Hence, behavioral addiction comprises internet addiction, sex addiction, excessive gaming, compulsive television watching, and overeating. It can either be passive if it will not involve physical efforts as with television addiction or active if it requires physical activity just as addiction to games. 

Another difference is the physical signs present in substance addiction: bloodshot eyes and sudden mood swings.

Behavioral addiction has no physical signs to show for it but some specific symptoms that will let you know you are addicted. These symptoms are similar to that of substance abuse which is where the link between both addictions comes in. 

One of these similar symptoms is a negative effect on the relationship with family, friends, and people within a person’s social circle.

You become more interested in your behaviors or your substance use than your social relationships that you may end up withdrawing yourself from social interactions. If you attempt to quit the behavior or substance, it will seem impossible and you may end up relapsing. 

This is why you should seek professional treatment if you are suffering from either of the addictions once you become aware of your condition.