Here’s something nobody really warns you about: your late teens and early twenties aren’t just hard because of school or money or figuring out who you are. They’re also, statistically, one of the loneliest stretches of your entire life.
Researchers have found that loneliness is highly prevalent in late adolescence and young adulthood — specifically during the years when you’re going through puberty, figuring out your identity, and trying to establish where you fit in the world. That’s a lot happening at once, and it turns out all that change makes you especially vulnerable to feeling disconnected.
Part of why it hits so hard at this age is the pressure of expectations. Adolescence is increasingly recognized as a period of heightened vulnerability to loneliness because it involves massive shifts — socially, emotionally, and in how you think about yourself and others. Your relationships are changing. What you want from people is changing. And sometimes reality just doesn’t match up with what you hoped your social life would look like.
There’s also a moving target problem. What counts as “enough” social connection actually shifts as you age. Researchers have noted, for example, that a teenager might feel lonely with just two close friends, while an 80-year-old might feel completely fulfilled with the same two friends. Young people are held to — and hold themselves to — high norms for social engagement. When real life falls short of that, loneliness follows.
So if you’re in this age range and you feel lonely more than you expected to, that’s not a personal failure. It’s one of the most common human experiences at your exact stage of life. Knowing that doesn’t make it disappear, but it does mean you’re not the only one feeling it — even when it looks like everyone around you is doing fine.