The average life expectancy in Japan is amongst the highest in the world, due to a variety of factors. These include a traditional diet based on vegetables, fish and seafood, rice, tofu and other healthy sources of protein and carbohydrates; regular exercise; positive mental attitude; social interaction; stress management; quality and quantity sleep; genetics and lifestyle choices such as avoiding smoking and excessive drinking. Additionally, access to high quality healthcare services also plays an important role in improving longevity. All these factors combined create an environment conducive to long-term physical and mental wellbeing.