Stem cells are cells with the potential to develop into many different types of cells in the body. They serve as a repair system for the body. There are two main types of stem cells: embryonic stem cells and adult stem cells.
Doctors and scientists are excited about stem cells because they have potential in many different areas of health and medical research. Studying stem cells may help explain how serious conditions such as birth defects and cancer come about. Stem cells may one day be used to make cells and tissues for therapy of many diseases, including Parkinson's disease, Alzheimer's disease, spinal cord injury, heart disease, diabetes and arthritis.
NIH: National Institutes of Health
The interesting thing about stem cell storage is that it offers tomorrows solution today. parents have to take advantage of the joy of their newborn and stor part of the cord blood and tissue from the umbilical cord at birth.The process is a non invasive procedure if carried out in vivo. Its can also be done in utero if there are delays with placenta delivery or for any other reason.
The benefit is to your child, whom, if in future develops a condition such as one of the ones listed above and many more can be treated with the stored blood. Parents are storing a lot in health aware nations.