When it comes to happiness, feeling supported and loved ranks high among our needs. Despite our need to connect, one in five people suffers from loneliness. And it affects more than widows and wallflowers. It’s not only happiness that’s at stake; loneliness is also a health threat. “If you isolate any social species, they die earlier. The same thing goes for humans,” says Mladen Golubi, MD, PhD, medical director of the Center for Lifestyle Medicine at Cleveland Clinic. Fortunately, loneliness can be conquered. Here’s how.