求翻译：人的时间是有限的，但是人的时间长短却是可创造的。古人活的时间比现代人长。古代的生活环境大部分为自然地生存环境，如今我们现代化的大都市给人的身体健康造成了许多不良影响。环境的污染，生活节奏的加快，电子产品的辐射等等一些现代化的建设在日益缩短我们人的寿命。是什么意思？

People's time is limited, but the length of time it is created. The ancients live longer time than modern humans. Most of ancient living environment for the natural environment, now our modern metropolis has many adverse effects caused to the physical health of the people. Pollution of the environment, acceleration of the pace of life, radiation, and so on modernized construction of electronic products in an increasingly shorten our life span.