A Strange Thing Happens When You And Your Partner Drink Alcohol Over Time

<img width="600" height="243" src="https://www.sciencealert.com/images/2019-07/processed/secondhanddrinking_600.jpg" alt="Two beers with sunset"/>
A mysterious pattern can be seen.

https://www.sciencealert.com/a-strange-thing-happens-when-you-and-your-partner-drink-alcohol-over-time