How synaptic pruning changes adult joy

by Katrina Karan: Science

Your brain is constantly editing itself, a process called synaptic pruning where connections that aren't repeatedly used simply get removed. It explains why childhood joy felt so effortless back then, just ice cream or snow without any real effort needed. As you grew up, that same magic started feeling naive and lightness looked irresponsible, turning joy into something mundane. This isn't life being mean; it's just biology optimizing for efficiency rather than malice. You might have stopped doing things like laughing without a reason, acting with no specific goal, or just assuming good things will happen next. The shift feels permanent but it isn't because neuroplasticity allows you to rebuild those lost capacities. You don't need force of will to fix this, you just need repetition. Try laughing without rhyme or reason again, do something purposeless, and assume positive outcomes are coming your way. It might feel fake when you start, but if you keep doing it consistently over time, the feeling eventually becomes real.