Four years ago, Aaron Littles burned out. Littles was a chief operating officer at a health tech company during the height of the Covid-19 pandemic, working 80 to 90 hours per week as his employer grew to 600 employees, up from 75, he says. When the owner of the company, who was eyeing retirement, raised the prospect of a promotion, Littles' shoulders slumped, he says. His marriage was already "on the brink" due to his demanding schedule, and "I was like, wait, you want me to do [even] more work?" Instead, the company started an executive search for a replacement COO, and "that's when I truly recognized that I was spent," Littles says. He moved into a "much more manageable" chief transformation role, worked with an executive coach and spent about three months working remotely from Pennsylvania's Pocono Mountains while trying to recover, he says. Today, he's the CEO of two Tampa, Florida-based health care staffing companies, PDTXperts and DayOne Staffing.…