According to a 2019 study published by Cambridge University Press, the common human perception that time speeds up as we age stems from a scientific misalignment between mental-image time and clock time. While a literal 24-hour day dictates measurable clock time, mind time is shaped by the images and experiences accumulated throughout a lifetime.
Proportional Theory and Life Experience Fractions
At age 10, a single year represents 10 percent of an individual’s total life experience, but at age 50, that same year shrinks to just two percent, according to mental healthcare company ReachLink. This proportional theory explains that each new year of life decreases as a fraction of the whole, making time feel increasingly compressed the older a person gets.
Novelty Deficit and Memory Compression
Memory records distinct events rather than spacing time evenly, a factor ReachLink identifies as novelty deficit. When routines remain largely identical week after week, fewer new memories are created to distinguish one period from another. This lack of distinct markers causes the past to look compressed upon reflection.
Did you know? Adrian Bejan, a mechanical engineering professor and author of Time and Beauty: Why Time Flies And Beauty Never Dies, authored the Cambridge University Press study showing that the young mind receives more images during one day than the same mind in old age.
Attention Absorption and Automatic Pilot
Brains frequently go on autopilot during familiar or habitual tasks through a mechanism known as attention absorption. During these routine activities, cognitive resources focus elsewhere, causing individuals to pay less attention to the clock and making time slip by unremarked.
Emotional Flattening and Dopamine Shifts
Experiencing significant emotions leaves a lasting impact, whereas prolonged burnout, stress, and monotony create thin, interchangeable memories that compress time. Additionally, changes in dopamine levels—a neurotransmitter involved in motivation, reward, and how the brain processes time—may alter how quickly individuals perceive time moving as they age, according to ReachLink.
How to Slow Down Perceived Time
Breaking out of established routines can help counteract the sensation of speeding time. Adrian Bejan previously advised taking proactive steps to disrupt monotony, telling readers to force themselves to do new things, treat themselves to surprises, and pursue unusual activities.
Frequently Asked Questions
Why does time feel faster as you get older?
According to a Cambridge University Press study, measurable clock time is constant, but mind time depends on the frequency of mental images. Older minds process fewer new visual inputs and memories relative to their total life span compared to younger minds.
What is proportional theory in time perception?
Proportional theory is the concept that each passing year represents a smaller fraction of your total lived experience, making time appear to move faster with every decade.
Can you slow down the feeling of aging time?
Yes. According to mechanical engineering professor Adrian Bejan, breaking daily routines, seeking out novel experiences, and pursuing surprises can create distinct memories that alter how time is perceived.
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