Why Does Time Move Slow When We Are Young, and Faster as We Age?

My mother used to say that life is like a roll of toilet paper- it goes faster the closer we get to the end. Anyone who has achieved some age can understand. It took forever for me to grow up, but it took much less time for my children to grow up, and then grandchildren grow up in the blink of an eye. Young people can't wait for Christmas, while older people can't believe it's Christmas again already. Why do we experience the passing of time so differently at different ages?

I've read that it's because of percentages. A five-year-old has spent 20% of his life in the last year, while a 50-year-old has only spent 2% of their life in the last year. But that's not the whole story. Dr. Betsy Holmberg explains that the child and adolescent brain works differently from the more mature brain, so their experience of time passing is different. She not only explains how that works, but also gives us some tips to make our lives move a little slower at Psychology Today. -via Real Clear Science