How most of yourr home is and die through your paper planner (yes, those still exist) or smartphone calendar? Logging every meeting, doctor’s appointment, and, however, that Monday reminder to signup to your weekly SoulCycle classes, all to help stay on the surface of your everyday to-dos?

Well, in accordance with a series of 13 studies within the Olin Business School at Washington University in St. Louis, you can find photos event you’ll want to avoid scheduling: leisure activities. Yep, penciling in this 5 p.m. happy hour with all your girls is a large no-no. Here’s why: researchers found that attaching a certain starting time and date to activities caused them to be less enjoyable.

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“We consistently realize that leisure, once scheduled, grows more like work,” explains study co-author Selin Malkoc, PhD, an affiliate professor of selling at Washington University. “As a consequence, people become less excited and also resentful towards such scheduled leisure. Maybe even more important, in addition, they enjoy scheduled leisure not nearly as expensive unscheduled leisure.”

Malkoc and her fellow researcher, doctoral candidate Gabriela Tonietto, looked into anything from attending a play to grabbing a coffee or snacks having a friend to test-driving a car-and the effects remained precisely the same. The fact is, Malkoc notes that in a single study, when people were motivated to take into account the last movie that they seen, and report on how much they liked it and whether or not had scheduled it, folks that had made fixed plans derived considerably less pleasure in the activity.

Which makes sense. Come on, man offer have you ever made plans earlier only to blow them off because, well, you just weren’t during the mood or, afterall, you felt as it was obviously a the rest of a chore to get yourself up, dressed, and out of the door to said meeting place.

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So how will you make time for fun without this being a burden? Malkoc suggest as a little less structured in your plans. “For instance, rather than getting coffee from 3 p.m. to 4 p.m., you could say ‘in manufactured,’ or instead of 8 p.m. to 9 p.m., you could say ‘after dinner,'” she says. “We regularly find that when scheduling is finished in such a less specific way, it does not lead leisure to feel more like work, therefore no reduce enjoyment.”