In Japan, people live longer than in most other countries due to their diet, lifestyle, healthcare system, social support networks and environmental factors. The traditional Japanese diet is based on whole grains, vegetables and fish which are low in calories but high in essential nutrients. Exercise is an important part of the traditional Japanese lifestyle with many people engaging in physical activities such as walking or cycling for transportation instead of driving cars or taking public transportation. Mental health benefits associated with mindfulness practices such as meditation and yoga also contribute to longevity. The healthcare system in Japan features universal coverage for all citizens regardless of income level or pre-existing conditions while social support networks foster positive relationships with family members and friends that can last a lifetime. Environmental factors such as clean air quality levels and green spaces also play a role in promoting healthy aging among the population.