Tag Archives: Documentary

Why don’t Zebras get ulcers?

  Imagine living on the African plains, spending most of your day finding food to fill your daily calorie load. In addition, there are predators in the shadows, not far away; you have to always watch your back.  Sounds like stressful life, doesn’t it?

  In a way, we all know being stressed is bad for the health. Nevertheless, stress response is an evolutionary trait with benefits—exhibited by numerous members of the animal kingdom. Becoming stressed generates a series of physiological changes that prepare animals for the Fight-or-Flight behaviour. The level of stress hormone, corticosteroids rises and activates the body: the heart start racing, breathing is faster, and the muscles become tensed. So, for the 30 seconds that you find a lion chasing after you, stress is very helpful and essential to your survival. Continue reading