In Sweden, intoxicating drinking for women is defined as consuming at least four standard glasses of wine, beer or spirits at one time.
For men, the number of glasses is five, although alcohol tolerance varies from individual to individual.
In the world of science - How to boost your immune system, the host and emergency physician Ronx Ikharias tests how alcohol affects the production of white blood cells.
The day after a wet night out, the results were presented - see how it went in the video above.
The whole world of science - Boost your immune system, you can watch Monday 14 June 20:00 on SVT2, or already now on SVT Play.