The Critical Signs Of An Addiction
2. Increased Tolerance

The more something is consumed or the more a person does the same thing over and over, the less exciting it becomes. This is due to an increased tolerance for the substance or activity. If intensity or volume levels need to be continuously raised in order for satisfaction levels to be met, then there may be a bigger issue at hand and help is probably necessary. Risk levels may also be raised with tolerance levels, meaning the person is doing something that may threaten their life, in hopes of gaining their high back.