Can't Study Alone? 6 Reasons Why and What Helps

If you can't study alone, the cause is rarely a lack of discipline. People work faster on familiar tasks with others around, and even a thin link to a group makes them try harder. A room of people working also sets a start time that a desk at home doesn't, and you can borrow all three on purpose.

The oldest experiment on working next to someone

In 1898, psychologist Norman Triplett noticed that cyclists rode faster with company. In the official racing records he collected, riders paced by a machine averaged 34.4 seconds per mile faster than riders racing the clock alone. Races against rivals were another 5.15 seconds per mile faster (American Journal of Psychology).

He then took the idea into the lab. Forty children each did six trials of turning a fishing reel as fast as they could. Some trials were alone, some side by side with a rival turning an identical reel. Triplett sorted them by their times:

By his own count, then, half the children didn't clearly speed up. Wolfgang Stroebe made the wider point in 2012: textbooks describe Triplett's task wrongly, it wasn't the first study of the effect, and its evidence was overstated (Perspectives on Psychological Science). Later research kept the idea but added a condition, and that condition is the first reason below.

6 reasons you can't study alone

1. Company speeds up the work you already know

Robert Zajonc pulled decades of scattered findings together in a 1965 paper in Science. His explanation: other people's presence raises arousal, which strengthens whatever response comes most easily. On a well-practiced task, that response is usually right, so performance improves. While you're still learning, it's often wrong, so learning suffers.

For studying, that splits your tasks in two. Flashcards you've seen before, past papers and familiar problem types tend to go faster with people around. A first pass through a hard new chapter may go better somewhere quieter.

2. Alone, the goal is only yours

In four experiments, Gregory Walton and colleagues gave participants the thinnest of social links to a field. It might be an arbitrary group assignment, a peer with similar tastes, or a birthday shared with a student majoring in that field. Each link raised motivation, including how long people persisted on tasks in that field (Journal of Personality and Social Psychology, 2012).

The authors' explanation is that the link turns a solo goal into a shared one. The link doesn't need to be close or personal to work.

3. Someone to keep pace with

In a 2011 experiment at Michigan State, Deborah Feltz, Norbert Kerr and Brandon Irwin had people hold plank exercises for as long as they could. After a first round alone, some continued alone and the rest next to a virtual partner on screen who always lasted longer. Everyone with a partner persisted longer than those who stayed alone. Simply exercising alongside the partner motivated as much as being on a team (Journal of Sport and Exercise Psychology).

A partner doesn't have to share your score to push you. It helps that they're visibly still going.

4. Studying is built to be put off

Piers Steel's 2007 meta-analysis of procrastination drew on 691 correlations. Its strongest predictors were an unpleasant task, a payoff far in the future, low confidence, impulsiveness and distractibility (Psychological Bulletin). Traits such as rebelliousness and sensation seeking were only weakly linked.

Revising alone for an exam weeks away ticks most of the strong ones at once. And nothing in an empty room marks the moment to begin.

5. Some people really do work worse alone

Nicholas Bloom and colleagues ran a nine-month experiment at Ctrip, a Chinese travel agency with 16,000 employees. Call-center staff who volunteered to work from home were randomly assigned to home or the office, and the home workers were 13% more productive (Quarterly Journal of Economics). Yet once the trial ended and everyone could choose again, about half of the home group went back to the office. Typically, they were the ones who had done relatively badly at home (NBER working paper).

Working alone suits some people and not others, even in the same job. If you can't study alone, you may be one of the people for whom company is part of how they work, and that's worth planning around rather than fighting.

6. Hours alone wear you down

At the same company, 49% of eligible staff didn't volunteer to work from home at all, despite the saved commute. In later interviews, the main reason they gave was the loneliness of home working and missing the chance to socialize. Those who tried it and came back said the same: after a few months at home, they got lonely (NBER working paper).

If what you miss is company more than focus, this guide to feeling lonely while studying goes further.

Is concentration contagious?

Probably not on its own. In a 2016 study, Kobe Desender and colleagues had pairs do a reaction-time task side by side and made it harder for only one of them. The other partner put in more mental effort too, even when they couldn't see what was on each other's screen. The authors called it a first demonstration that effort is contagious (Psychonomic Bulletin & Review).

In 2025, a team that included Desender tried to repeat it, once exactly with 176 people and once with a harder task with 120. Neither attempt found the effect, and the original result vanished when its data were reanalyzed with a stricter statistical model (Journal of Cognition). The six reasons above rest on other evidence; this one, for now, doesn't hold.

What helps, reason by reason

Match the fix to the reason. If starting is the hard part, a set start time will do more than a better desk. If it's the solitude, a silent room of strangers may not be enough.

On StudyDuo, Focus Room never closes: people work on camera with mics off, each with their task under their name. Once a day, Study Hour starts everyone on one shared focus block, and a 1:1 gives you one partner on video, with sound. You decide who can see your video; to anyone else, you're a blurred silhouette. More on studying live with real people: study with me.

If you can't study alone and nobody is around at all, try these ways of body doubling by yourself. If you're weighing a group against solo study, see what studies found about each. And if trouble focusing shows up at work and at home too, not just in studying, talk to a doctor.

If you have to work on your own anyway, how to study alone replaces what a class gives you. If it's talking groups you dislike, see studying without a talking group.