how can people in your country be encouraged to live healthier lives?

Nowadays, it can be seen that most of the people around the world are suffering from many diseases such as diabetes, cancer and obesity due to their inadequate health lifestyle. In my country -Oman- , the Health Government does the best to support people to have a good lifestyle to live longer. one of the ways that banning smoke in public places. for instance: malls, parks and schools. in addition, there are many lovely restaurant in Oman that do healthy food instead of junk food.
people in Oman can not do sport for example: walking or running because of the bad weather, that's why the Gyms spread out and we have a lot of them in Oman so people can excercise and be healthy.
all the countries around the world should do everything to maintain the healthy lifestyle for people.