Tod Perry

When you’re a kid, time passes a lot more slowly than when you’re an adult. At the age of seven, summer seems to go on forever, and the wait from New Year’s Day to Christmas feels like a decade. As an adult, time seems to go faster and faster until one weekend you’re putting up your Christmas lights though you swear you just took ‘em down a month ago.

Why does time seem to speed up as we get older? Astrophysicist Neil deGrasse Tyson recently explained the phenomenon in a video posted to Instagram. He also offered tips on how to slow the passage of time as you age. DeGrasse Tyson is one of the most popular science communicators in the world and the host of 2014's Cosmos: A Spacetime Odyssey and 2020’s Cosmos: Possible Worlds.

Why does time appear to speed up as we get older?

“When you're young, everything is new. Your brain is constantly recording fresh memories, and the more memory your brain stores, the longer the experience feels. But then something changes. As you get older, routines take over. Your brain stops saving so much detail. It switches to autopilot because everything feels familiar and predictable,” deGrasse Tyson explains. “And when your brain stores fewer new memories, your perception of time compresses. That's why childhood feels long, and adulthood feels like a blur.”

Steve Taylor, PhD, author of many best-selling books including Time Expansion Experience, The Leap, and Spiritual ScienceThe Leap, and Spiritual Science, agrees with deGrasse Tyson.

“This is mainly because, as children, we have so many new experiences, and so process a massive amount of perceptual information,” Taylor writes at Psychology Today. “Children also have an unfiltered and intense perception of the world, which makes their surroundings appear more vivid. However, as we get older, we have progressively fewer new experiences. Equally importantly, our perception of the world becomes more automatic. We grow progressively desensitized to our surroundings. As a result, we gradually absorb less information, which means time passes more quickly. Time is less stretched with information.”

How do we make time slow down?

There’s something a little depressing about the idea that time speeds up as we age because we have fallen into predictable routines. The good news is that we can break this cycle by changing our habits and having new experiences. The more novel information we can process and the less routine our lives become, the slower time will move.

DeGrasse Tyson believes that with some change in our behaviors, we can get back to longer summers and Christmases that aren’t perpetually around the corner.

“You can actually slow time down again. Do something unfamiliar,” deGrasse Tysons says. "Travel somewhere new. Break a routine you've repeated for years. Learn a skill your brain hasn't mapped yet. Because the more new memories your brain forms, the slower time feels as it passes. So if life feels like it's accelerating, it's not your age. It's your brain, and you can reboot it.”