Why did summer vacation feel like an eternity when I was seven, while now the year flies by? It's not just nostalgia. Neuroscientists like Professor Claude Alain from the University of Paris confirm that our perception of time changes physiologically. The key is proportion. For a 10-year-old, a year represents 10% of their entire life. For a 50-year-old, the same year represents only 2%. This relative proportion significantly distorts our internal sense of the passage of time. The novelty of experience is also important. Professor David Eagleman of Stanford University explains: childhood is filled with discoveries. Every day, like a first trip to Disneyland, creates dense, memorable moments, stretching them out in the memory. Adult life is often routine: the commute to work, the same tasks. The brain processes repetitive events with less intensity, failing to form new vivid memories. This compresses the experience in the mind. Want to slow down time? Create new experiences! Visit St. Petersburg, master watercolor painting, or learn a new language. Each such experience will add to your memory "library," making life's moments stretch out once again.