Tossing & Turning All Night? You Might Be Feeling Lonely, Says A Science Journalist 

"The reason for that is actually quite fascinating," Zaraska explains on the mindbodygreen podcast. In fact, she says your body is hardwired to feel restless when you're isolated. Below, she breaks it down.

Of course, this is not so applicable to modern life (unless you frequently wander the desert). However, says Zaraska, your body didn't exactly shake that innate response as humans evolved. That's why when you feel lonely and isolated—just like you might if you were exiled back in the day—that same stress response may have you feeling wired. Research even shows how chronic isolation can disrupt a number of neuroendocrine factors that can lead to a higher stress response7. In more basic terms: "Still, when we are feeling lonely, we feel that we're outside of the tribe," Zaraska explains. "And we look out for the lions." 

Loneliness is associated with so many health concerns—it only fits that poor sleep makes it onto the roster. Needless to say, a sense of companionship and belonging is crucial for overall well-being; while it might be a bit more difficult to connect with others right now, it's not impossible to boost your relationships. In fact, virtual hangs have a worthy place in the conversation, as do acts of kindness. If you can't seem to catch zzz's, consider it a sign to focus on your high-quality connections in any way you can.