Never Give Up !

You never know when you number will come up…

They say zebras do not get ulcers since they do not worry about the future.  At any moment they could be eaten by a lion.  Wildlife has to deal with acute physical crises where their life suddenly depends upon an immediate response.  Their physiological response mechanisms have evolved to deal with such short term emergencies [R.M. Sapolosky, 2004].  In a few short moments they either survive the crisis, or they die.