As if we need to be any more impressed, Soni underwent a surgical procedure called cardiac ablation because she was suffering from an irregular heartbeat.
In an article by Karen Rouse of The New York Times from 2008:
Starting when she was 16, Soni experienced episodes once or twice a month in which her heart would beat very rapidly during exercise. Toward the end of her freshman year at U.S.C., the episodes became more frequent.
She had the procedure done in July 2006 in Los Angeles. A catheter was inserted in her groin and electrical energy was used to destroy areas of abnormal tissue in the heart that were causing the rhythmic disturbances.
Soni said her heartbeat has been normal since the procedure.
Now look at everything Soni has accomplished in an out of the pool.
Considering her dominance prior to the procedure, Soni's success thereafter is a legitimate foregone conclusion. It clearly limited her ability despite the talent, but since, Soni has taken even further advantage of her opportunities.
It's an inspirational story, because it simply means that anyone can overcome any obstacle en route to enjoying Olympic success.