2. Stay busy
Most people think that once they reach their retirement age, they will sit back and spend the rest of their life doing nothing. However, in order to expand your lifespan, you need to keep working or stay busy with something. Based on a research done, people who continued to work after their retirement, even if it was part time, lived longer than those who did not. The reason for this is that, the stress that comes from working daily, is actually beneficial for the body. As a result, it is recommended to work even at old age.