The common paranoia-inducing effects of cannabis can cause bad magic mushroom trips.
Opiate addicted individuals commonly experience bouts of euphoria followed by bouts of depression.
When an individual stops consuming alcohol, alcohol level in their body can actually continue to increase. No amount of coffee, cold baths, showers, or trying to walk it off will stop this process.
Tolerance is defined as the need for larger amounts of alcohol to become intoxicated.