Before the pandemic, Dara was a research engineer, thriving in a job that involved complex technical design and problem-solving. (Names in this article have been changed for privacy.) She was also an avid baker and a voracious reader. Then in March 2020, she got Covid-19. Even after the acute illness had passed, many symptoms remained: Dara struggled to sit up for more than half an hour, was too breathless and lightheaded to walk even short distances, and had severe brain fog that left her unable to hold a conversation or write an email. She used all of her paid and unpaid leave to rest and try to recover. Eventually she improved enough to return to work — but she knew her job needed to change.