Final answer:
Tolerance is when a drug user needs to consume more of a drug to achieve the same effect, which describes the increase in alcohol consumption you've experienced to get a buzz.
Step-by-step explanation:
The phenomenon you're describing is known as tolerance. This happens when a drug user requires more of a given drug to experience the same effects that were previously achieved with lower amounts. With substances like alcohol, tolerance can develop as your body adapts to its presence in your system. As your tolerance increases, you may find that you need to consume more alcohol to feel the 'buzz' you used to feel with less alcohol. This is a common sign of developing tolerance to the effects of alcohol.
In context to your choices:
- Withdrawal - A condition where a person experiences negative physical and psychological effects after stopping or reducing intake of a substance they are dependent on.
- Dependence - When the body has adapted to the presence of a drug, and stopping intake can result in withdrawal symptoms.
- Craving - A strong desire to consume a substance that can occur in someone with a history of substance use.
Given the choice between tolerance, withdrawal, dependence, and craving, the correct answer to your observation is tolerance, as you've noticed the need for increased consumption of alcohol to achieve the same effect.