If you are regulars of American series such as House, The Affair or This is us, you will be familiar with the classic protagonist who, after an episode of acute pain, ends up becoming addicted to prescription opioids such as Vicodin®, OxyContin® or Percocet®. Do not think that this is a writer’s exaggeration.
In 2015, life expectancy in the United States changed the trend and began to decline for the first time since the First World War. Among the causes, the epidemic of deaths from opioid overdoses, which multiplied by six between 1999 and 2017 (1), surpassing deaths associated with AIDS at its worst or those related to the Vietnam War. The epidemic was declared a national emergency by the United States Department of Health in 2017 and, despite the campaign deployed to combat it (2), 130 people still die in that country every day from opium overdose. If you are interested in the subject and want to delve into it, read the supplement that Nature dedicated to it in September last year.








