
The proportional theory of time
The busy brain and memory making
Biological clocks and heartbeats
The cultural speedup of modern life
YOUR GOAL
Master of Why time flies as we age
dash Why Time Flies
Ten percent when you are ten, Two percent when fifty starts, Life is just a shrinking fraction!

dash Play this game to explore the math behind biological clocks, heartbeats, and why time seems to speed up as we get older.
Fly vision: A housefly perceives time about four times faster than a human, which is why hitting one with a newspaper is so difficult.
Which psychologist discovered the link between body temperature and time perception using his feverish wife?
What is the threshold at which an animal's eye perceives flashing light as a steady beam?
In what year did researchers publish the landmark study linking animal size, metabolism, and time perception?
What physiological change in aging humans contributes to the feeling that external time is speeding up?

