“Custom Of Handfasting”: 80 Interesting Facts That Show How Strange The World Really Is (New Pics)

The more you learn, the more you will realize how little you actually know. It is completely natural to feel overwhelmed by the sheer amount of information out there. After all, the human brain has a physical limit to how much data it can store and retrieve.

Even with infinite memory, a single human lifespan is far too short to read, experience, or process every piece of information that exists — or every new detail created every second.

It’s also impossible to know everything, because humanity as a whole has barely scratched the surface of our own world, let alone the vastness of space.

For instance, according to recent data from the Seabed 2030 ocean mapping initiative, over 71% of the Earth’s global seafloor still remains unmapped using modern high-resolution technology.

In fact, scientists estimate that less than 0.001% of the deep ocean floor has ever been directly seen by human eyes.

We still have so many other major mysteries to solve. Scientists are still trying to figure out what happened before the Big Bang, how life first started, and what consciousness actually is.

Taking that extra step to learn new things actually rewires your brain to handle life’s challenges better.

Researchers at Columbia University’s Zuckerman Institute recently tested this idea with mice in simple mazes. In their experiments, the scientists constantly changed the rules for where the mice could find rewards. But there was a catch: before entering the maze, some mice had time to explore unfamiliar rooms or meet new mice, while others stuck to their usual routine. The mice that enjoyed fresh, new experiences right before the test solved the shifting maze much faster.

The results prove that stepping out of your comfort zone and learning something new primes the brain, making it far easier to adapt when circumstances suddenly change.

There is no age limit on when you should stop picking up new facts — learning is a lifelong journey that keeps the brain sharp at every stage of life. As we grow into adulthood, busy schedules and set routines can make it harder to maintain that same sense of wonder.

However, curiosity is like a muscle: the more you use it, the stronger it gets. Science shows that adult brains retain neuroplasticity, meaning they can form new neural connections and continue growing no matter how old you are.

You’ve already taken the first step toward building that habit just by scrolling through this list. The secret is simply adopting a child’s open-minded approach to the world around you.

“Children don’t typically say, ‘this is not relevant to me, I’m not going to learn it.’ So typically when they see something, they are curious, they just want to learn whatever comes their way. And so as adults, we can also try to have more of that kind of attitude as well. So don’t dismiss things as irrelevant and just take in what you can,” says Dr. Rachel Wu, an associate professor of psychology at the University of California, Riverside.

Learning new facts and keeping your mind active pays off as you grow older. A 15-year study from the Karolinska Institutet shows that building a strong mental reserve can delay memory loss and protect your brain over time.

Older adults who challenge themselves with complex tasks — like learning a new language or picking up a tricky hobby — stay sharp. More importantly, these mental workouts help people live independently for much longer.

When curiosity takes hold, your brain turns on its internal reward system. It releases a flood of dopamine — the chemical linked to feelings of pleasure and reward. This surge creates a rush of activity between the brain’s pleasure center (the nucleus accumbens) and its memory hub (the hippocampus). As a result, research from UC Davis shows that curiosity acts like a mental superpower, prepping your brain to soak up and retain new information much faster.

For instance, when you hear about Napoleon trading insults and fistfights with his bitter military school rival, the juicy feud immediately grabs your attention. Because that initial spark gets your brain excited, you are far more likely to absorb and remember the more important historical details — like how the classmate later masterminded the defense at the Siege of Acre 15 years later.