Tick tock, tick tock, tick tock. You stare in the dark at the numbers glaring back at you on your alarm clock. It is 3 a.m., and the makings of another night of interrupted sleep and frustration ...

Goudarz Molaei is a research scientist at the Connecticut Agricultural Experiment Station and an associate clinical professor in the Department of Epidemiology of Microbial Diseases at the Yale ...