The researchers tested a new longevity drug on two groups of white rabbits  They injected two identical groups of rabbits with the new drug, then kept one in a cage and the other in a natural environment  The results showed that the average life span of rabbits raised in natural environment was 1/10 longer than that of rabbits raised in cage
As a result, the researchers believe that the relaxed environment is conducive to the function of the new drug
The little white rabbit in the cage has an unhappy life.