try this from     http://www.making-connections.com/english/book1.htm


CANADIANS HAVE always worked together to improve our health. And
collective action is just as important today as it was many years ago.

                    Almost a century ago, citizens



' groups took action and
achieved reforms
               that greatly improved everyone's health. They pushed to eliminate
 crowded
               housing. They fought for safe drinking water and better
sanitation. They
               lobbied to end child labour and overlong workdays. They pressed
for health
               and safety laws, and they helped to set up day nurseries for the
children of
               working mothers.

                     Today we know even more about what makes us healthy ? and
what
               harms our health. We know quite a bit about how the genes we're
born with
               affect our health. We know that eating well and staying fit is
important.

                     But, in fact, our social and economic environment is
probably the most
               important influence on our health. Today's research shows that
our health is
               strongly associated with our opportunities to work, play, learn
and contribute
               to our community. Our health is linked to where we live, how we
care for
               each other, how much love, attention and stimulation we can give
to our
               children and to our sense of belonging.