Money come and go. Girl/boyfriend can break up with us. Spouse can file a divorce. Materialistic possessions? Meh, they only last for years, decades at best. It is YOUR BODY you have to really take care about.
Have you fulfill its nutrition need? Have you been exercising regularly? Enough sleep? Did you manage your stress?
We all will die some day. But taking care of our body is a sign of gratefulness for our amazing self