Question

Is it true that so many years ago a person can live more than hundred years. how? And this time why a person can't live more than 70 to 80 years.

Answer 1

True, due to rapid technological development people became more dependent on technologies. So they became less effiecient and more lazy. Hence they have very bad health , which eventually would lead to dieases, which might prove fatal.

Hence the average life Expectancy of humans decreased considerably.