A large study of more than 20 million people found that having more weak ties—acquaintances and infrequent contacts—was linked to greater career mobility, including applying for and changing jobs. The research also associated loose connections with higher compensation, better performance evaluations and more promotions.
Research cited in the article links later sleep schedules with poorer mental health and more work-life balance problems, even among people who get enough sleep. Sleep experts say night owls do not necessarily need to change their natural rhythms, but recommend managing light exposure, device use, caffeine and stress to support better rest and work performance.