This is the study it refers to: https://news.virginia.edu/content/lack-covid-19-lockdown-increased-deaths-sweden-analysis-concludes
Link: https://www.forbes.com/sites/ericmack/2020/07/07/sweden-stayed-open-and-more-people-died-of-covid-19-but-the-real-reason-may-be-something-darker/#3a1084ca69bd