http://www.sciencemag.org/news/2019/10/split-decisions-how-brexit-has-taken-toll-five-researchers

On 23 June 2016, 34 million U.K. citizens took to the polls to vote on a simple, fateful question: Should the United Kingdom remain a part of the European Union, or should it leave? Nearly 52%—a majority of 1.3 million—wanted out, and conservative politicians vowed to carry out the people's wishes.

Sandra Arndt, a German biogeochemist working at the University of Bristol, couldn't cast a ballot. So, she voted with her feet. In 2017, she got a job at the Free University of Brussels and moved her family to Belgium. "Never in my wildest dreams would I have imagined that one of the oldest democracies of the world—one of the most tolerant, outward-looking countries, one of the most pragmatic and successful nations—would descend into such a dangerous political mess," Arndt says.