[caub]

if people could also consume less, stop having useless pets, stop smoking, etc.. that would help increasing the life expectancy on this planet too

[nightski]

Hmm. It seems like countries that are more well off and have a much higher amount of excess consumption also have better life expectancy. This sounds like a personal ramble instead of being based on actual data.

[orangecat]

Pet ownership is generally believed to increase life expectancy, for example http://animals.howstuffworks.com/pets/live-longer-with-a-pet...