In the prima facie impression, people may think the residents of Hong Kong are liable to living shorter than those in other places of the world.  Why do people think that way?  Because people in that extremely populous island squeeze themselves into tiny living and working spaces within a small island; people have to manage showhow to survive in a highly competitive society with longer working hours that may most likely make them suffer from larger stress and distress than others in elsewhere.  Besides, they might have taken too much "nutritious" food from dim sum restaurants.

The fact is; however, Hong Kong is a place among the coutries/areas where people are enjoying longest lifespan in the world.  How could it be?  Well, in the three-day stay at Hong Kong, I found swarms of people are all rushing hastily everywhere, anytime: on streets, in the platforms and passages within subways, at nearly the same speed I do walking in the parks almost everyday.  The taletell sign casts light on the answer why people of Hong Kong can enjoy longivity in such an adverse living condition: they walk a lot. 

You may ask how about seniors, do they walk that fast also?  They do not have to because they can stay at homes enjoying their longivities which have been out of their constant walks when they were young. 

PS  Well, it is said the public health system in Hong Kong is not bad, either.