In absolutely agree with previous opinion. But in Russian language the word HUMAN translates as ЧEЛOBEК, we can divide this word into two: ЧEЛO-face, BEК-century. It means that our face is given for us for 100 years. But with urban way of living, bad food and bad air and the technocratic society make our life shorter, MUCH shorter !!! Also previous people, as Noah lived more than 800 years,as we know, so it is possible to live more than 60-70 even 80 years. Do sport, don't drink alc or smoke cigarettes and life will be longer and easier)))