Is it possible to be high for two days?

Yes, it is possible to feel the effects of certain substances, like cannabis or hallucinogens, for an extended period, depending on the dose and individual tolerance. For example, edibles can lead to prolonged effects lasting into the next day. Additionally, some substances may cause lingering psychological effects or a "hangover" that can make a person feel altered for an extended time. However, the intensity and duration of effects can vary widely from person to person.