Special Relativity

For those to have taken A Level Physics courses, special relativity should not be too foreign.
Special relativity is a theory proposed by Einstein in 1905, and predicts many consequences that have been experiementally verified, including the famous and counter intuitive length contraction and time dilation.

How this works is that when an object is moving relative to an observer, its time appears to slow down and it appears to be compressed in the direction of motion.
Therefore, we know the following: By Special Relativity, the key to longevity is running!

So here's a calculation to verify the statement:
An average human being in 2010 has a lifespam of 67.2 years.
There are 365.25 days per year, each containing 86400 SI seconds. This produces 2120670720 seconds per year.
Assuming the velocity of a person is that in a standard marathon, or 5.67m/s, the Lorentz Factor is approximately 1.000000000000000178852376935311 and so the time gained by time dilation is 3.79 x 10^(-7) s.
Not bad, this gives us less than a millionth of a second extra to live (from the perspective of a stationary observer).

Anyway, this is pretty far off from thamsy's estimate of 1 second, so better luck next time :P
Length contraction shall not be discussed, as Zheng Xun pointed out, most people do not want to slim down in the direction of motion caused by running (lol), so no point there.

Only the paranoid survive said (11:53 AM):
usually ppl want to slim in the direction perpendicular to their velocity :P
Chen, the Holy Knight said (11:54 AM):
lols
run sideways!
obviously thats the solution to the problem.
Only the paranoid survive said (11:54 AM):
haha