THE TIME BLOG

If you live to be 80 years old, you will have spent roughly 26 years asleep. That’s nearly 230,000 hours. When you see this number on the AgeInSec calculator, it’s easy to think of it as "wasted time." But is it really?

The Brain Does Not Shut Down

During REM (Rapid Eye Movement) sleep, your brain is almost as active as when you are awake. This is when memory consolidation happens. Think of it as your brain's "Save Button." Without sleep, the memories of your life would essentially evaporate.

Time Dilation in Dreams

Have you ever had a dream that felt like it lasted for hours, only to wake up and realize only 15 minutes had passed? In the dream state, our perception of time is fluid.

Have you ever heard the theory that every living creature is born with a limited number of heartbeats? It's a popular idea known as the "Rate of Living" hypothesis.

The 1 Billion Beat Rule

When we look at the animal kingdom, there is a striking correlation. Small animals like hamsters have incredibly fast heart rates and live only 2-3 years. Massive whales have slow hearts and live for over 80 years.

Remember when summer holidays in elementary school felt like they lasted an eternity? And now, entire years seem to pass in the blink of an eye.

Paul Janet's Proportional Theory

French philosopher Paul Janet proposed a brilliant explanation. He suggested that we perceive time relative to the total time we have lived.

• At age 5: One year represents 20% of your entire life.
• At age 50: One year represents only 2% of your life.

Time is not a universal constant; it's relative to where you are standing. Our entire calendar system is based on Earth's specific dance with the Sun. But if you were born on another planet, your "age" would be completely different.

A Year is Just a Circle

• Mercury: It zips around the sun in just 88 Earth days. If you are 30 on Earth, you would be roughly 124 years old on Mercury!
• Jupiter: It takes nearly 12 Earth years to complete one orbit.