Though it’s hard to describe what loneliness feels like, nearly everyone has felt it. It’s that knot in your stomach when you’re away from someone you love, the sadness of losing someone you care about, the pain of feeling like an outcast, or the agony of loving someone who doesn’t feel the same way. We feel lonely when we are unhappy with the quality or quantity of our interpersonal relationships. We feel lonely because we think we lack connection with friends, family, or partners.
Sometimes we’re truly alone, while other times, we simply think we are. Either way, loneliness sucks.
Over the past 40 years, scientists have studied many aspects of loneliness, from its genetic components to how feeling alone impacts a person’s lifespan or quality of life. In these decades, they have learned a lot — including some things that might seem counterintuitive. We unpacked five common misconceptions about loneliness, to better understand — and hopefully, conquer — those negative feelings we all have:
Loneliness Is Not Just A Human Emotion
Often, people think that our emotional responses, ranging from anger to loneliness, are felt uniquely by members of the human species. But science suggests that a wide range of species can actually feel lonely, and that the emotions associated with loneliness are a key piece of a biological warning system that helps ensure survival.
Social species — like us — depend on other members of our species from birth, and in many cases, being alone means not gathering enough food or having adequate protection from predators. Thus, what we call loneliness may be our body’s way of protecting us when we are isolated to ensure our survival, just like feeling hungry warns us that we need to eat. “Loneliness represents a generally adaptive predisposition in response to a discrepancy between an animal’s preferred and actual social relations that can be found across phylogeny,” scientists explain in a Perspectives on Psychological Science study.
For example, they note that poor sleep is often associated with loneliness. When we’re sleeping, we’re most vulnerable to would-be attackers, and thus sleeping less when alone might have helped keep our ancestors alive until they reconnected with others. Knowing that we’re not the only lonely species on the planet can help us understand the biological source of our negative feelings using animal models, and might just give us some much-needed insights into how to feel less alone.
Loneliness Is Not Just A Product Of Our Environment Or Circumstances
The more scientists study what causes loneliness, the more they have come to realize that a decent portion of how we feel is written in our DNA. Genes that regulate neurotransmitters and the immune system have been linked to worse negative feelings when alone. That’s not to say that our genes are entirely to blame, but people with certain variants of key genes will feel lonelier than others when in the same situation. By understanding how our genes affect how bad we feel when we’re alone, scientists may be able to determine what types of support or treatment are best for which people, particularly when loneliness leads to depression and other, more dangerous emotional states.
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