What is the life span of the elderly?

Birthday generally refers to the birthday on the tenth birthday at the age of 60. Birthdays for elders are called birthdays. Generally speaking, people celebrate their 70th birthday at the age of 69, which is also known as the whole life. 70 years old means "longevity", 80 years old means "longevity", 90 years old means "longevity" and 100 years old means "longevity". Other places celebrate their 73rd and 84th birthdays, mainly because Confucius lived 73 years and Mencius lived 84 years. Some people think that these two ages are the threshold for the elderly, and they should be congratulated on the anniversary, hoping to avoid disaster and take refuge. After liberation, birthday celebrations stopped for a while and then resumed. People hold parties, eat birthday cakes, light birthday candles and sing happy birthday songs. In rural areas, there are also young people who give big gifts (bows) to people who celebrate their birthdays.