Diary of a rail fan in Kansai,Japan(Ver.2)

About world's rail news, general news, my train pictures, and travel diary)

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Why do more and more people live longer?

edition.cnn.com

Anyway, life longetivity must be mainly improved by modern medicine and safe foods.
But, it's not better to rely on modern medicine to extend our lives. It would be better to do so by focusing on factors below as Harvard School of Public Health says.
・Eating a healthy diet
・Exercising regularly
・Keeping body weight
・Consuming alcohol in moderation
・Never smoking

But, for people who feel strong stress when keeping these rules, I wonder if they really extend their life expectancy.
The next research would be relationship between stress and healthy life.