Wine
Teenagers that binge drink are still at risk of loss of memory days later.
There is evidence that excess alcohol and binge drinking in particular damages parts of the brain.
Binge drinking is already known to affect people's memories of past events.
In this study, the scientists looked at students aged 17 to 19 - a period when the brain is still developing.
Binge drinking was defined as at least eight units a session for a man and six for a woman once or twice a week.
The researchers said the binge drinkers studied consumed, on average, 30 units in just two sessions.
The teenagers were tested three or four days after their last drinking session, so that their bodies would be free of alcohol.
They were asked to answer questions about how often they forgot to carry out tasks they intended to do, such as meeting with friends.
They were shown a video clip of a shopping trip after being given a couple of minutes to memorise a set of tasks prompted by various cues in the film, such as remembering to text a friend at a certain shop, or to check their bank accounts after seeing a person sitting on a bench.
A small group of young people is drinking earlier in life and at dangerously high levels
He said it was possible that the pre-frontal cortex or hippocampus regions of the brain were being impaired.