This is because the olden days people lives completely on natural or orgsanic products and abundantly environmental efficiency. The opposite is the case nowadays. We depends on artificially products like fertilizers grown food for survival. The environmental quality has been compromised with water,noise and air pollution from smoke, extreme sound,chemical e.t.c. All this causes our body inhabit sickness of cancer, hypertension, e.t.c.The result has been early/sudden/high rate of death.