But already, these procedures have allowed many people too old or frail for an operation to get help for problems that otherwise would likely kill them.

NPR: Heart Repair Breakthroughs Replace Surgeon's Knife

If children don't start therapy until they are 4 or 5 years old, it is much harder to change their behavioral problems.

CNN: Study: 1 in 110 U.S. children had autism in 2006

Unfortunately many women still have acne problems even when they are 40 years old, with or without being on the pill.

CNN: Could stopping the pill be causing my acne?