What about mold?

Let's just think about it.

When we leave, let's say, a piece of apple in a moist environment, it will get soggy and moldy over time.  It may even start fermenting (a different kind of mold).  This is how the apple will decay in a moist environment.  In a dry and hot environment, the same piece of apple would dry up and eventually would turn to dust.  

If I am to  walk by this apple piece, I may experience the same symptoms as my own body is in the moist or dry environment.  A live apple tree may withstand a change in weather and seasons, provided it receives good nutrients in the soil, the richer soil, the better the fruits :)  . Similarly, my body will shed whatever is already not needed in my body.   

Do I get effected by the decaying apple?  Not a bit. :)  In fact, have you tried pickled apples?