When thinking about drugs, we tend to focus on episodes of intoxication, but many drugs are normally used in subthreshold or maintenance doses; coffee and tobacco are obvious examples in our culture. The result of this is a kind of 'ambience of intoxication.' Like fish in water, people in a culture swim in the virtually invisible medium of culturally sanctioned yet artificial states of mind.

• drugs
• intoxication
• coffee
• smoking
• culture