Natalia Klenova/EyeEm/Alamy
THERE can be few things more debilitating than going to bed, after a long and tiring day, and being unable to drift off. The harder you try to fall asleep, the more difficult it becomes – a vicious cycle of unwanted wakefulness that takes a significant toll on the lives of millions.
But it doesn’t have to be this way, because a new, more nuanced understanding of insomnia has made it a solvable problem, as we report in our cover story. Underlying this improved understanding is the recognition that there isn’t one type of insomnia but many – a departure …
