Joint health is important in all stages of life. With each age group there are different measures to take to ensure that joints stay healthy and do not seize up or become stiff. Staying active and eating a healthy diet are part of each stage of life. The job that you choose to work and stress that you have in your life do play a factor in how healthy your joints will be as you age. Maintaining a healthy body begins in the womb and should continue through the end of life stages.