Everybody has a birthday. When a child was born after one month or after one year, rich parent will celebrate by holding a big party to invite friends and relatives to come for the occasion. Even some middle class family also will buy good food to celebrate their child’s birthday.
This is the Chinese custom so far, but even parents all over the world are doing the same celebration for their children.
In Western countries, when their children are at the age of kindergarten, they will celebrate by inviting al the class-mates of kindergarten to their home to hold a party. Such party may maintain up to the age of primary school.
Middle aged men, of course not all, like to have birthday party every year to make a good relationship with friends which may be helpful to his business career. But, too many such parties among the middle-aged men are not good to their health. It is not advisable to do so.
Old men should avoid celebrating his birthday. It is absolutely to hurt his health. Of course, it is comfortable to hold a small party in family, but never invite many friends or relatives to join his birthday party. A big party will make old people excited and such excitation will bring his illness afterwards.