When Michael was younger he had ADHD meaning he has Attention Deficit Hyperactivity Disorder.
Michael has an English Bulldog named Herman and Phelps says, "I've never heard someone snore so loud".
Michael is now the only person in the history of the Olympics to win 8 gold medals in a single games; breaking Mark Spitz's record of 7 on August 16, 2008.
Michael took home 8 Olympic gold medals in the 2008 Beijing Olympics while breaking 7 world records in the process.
Baltimore, Maryland (Michael's hometown) named a street Michael Phelps Way in his honor.
Michael is the only male swimmer to win five individual events in a single Nationals meet.
Michael is the first male swimmer to break two world record in separate events in the same day.
Michael holds three individual world records in the 200m fly, 200IM, and 400IM. He also holds American records in the 200m fly, 200m free, 200IM, and 400IM. He helped his teammates achieve American records in the two free relay events, 400 meters and 800 meters.
Michael is the proud holder of 27 U.S. National Titles.
Michaelis a 13-time Olympic record holder, a 19-time American record holder, and a 10-time World Champion.
Michael received five gold medals and one silver medal at the 2005 World Championships.
Michael received three gold medals at 2005 US Nationals.
Michael received three gold medals at the 2006 Pan Pacific Games.
Michael is the first American male to qualify for six individual events in the Olympics.
Michael tied Mark Spitz's record of four individual gold medals in the 2004 Olympics.
At the 2004 summer Olympics in Athens, Greece, Michael won six gold medals and two bronze.
Michael is a 10-time World Champion.
Michael first appeared in the 2000 Olympics at the young age of fifteen.
Michael was named USA Swimmer of the Year three times.
Michael is a sponsor for Speedo, Visa, Omega, Power Bar, and Matsunichi.
After capturing six medals and breaking five world records in the 2003 World Championships, he was named Swimmer of the Meet.
Michael was the first Olympian since 1980 to receive eight medals in a single Olympics.
Michael received the 2004 Sullivan Award.
Michael is a national spokesperson for Boys & Girls Clubs, along with athletes Michael Vick, Denzel Washington, and Alex Rodriguez.
He worked with fellow Olympians Ian Crocker and Lenny Krayzelburg to found "Swimming with the Stars." Since its conception, SWTS has travelled all over the US to promote swimming and has held camps for swimmers of all ages.
Michael has brown eyes and brown hair.
Michael attended University of Michigan.
His height is 6'4". His wingspan is 6'7".
Michael Phelps has two older sisters who were also swimmers at one time. Hilary Phelps' specialty stroke was the butterfly, and she competed for the University of Richmond (1997-2000). Whitney Phelps competed in the 1996 Olympic Trials at age 15.
Michael: The biggest thing in a meet like this (he swam three 100 meter events in 41 minutes) is how mentally tough you can be. As many times as I can put myself in a situation where I have to be mentally tough, it's going to help me in the long run, especially with Worlds coming up.
Michael: A buddy of mine actually read of me being in the names of Tiger Woods and Roger Federer. That is a pretty big accomplishment and definitely something I'm proud of. They have changed their sports themselves, so hopefully I can do the same in swimming.
Michael: I think the Special Olympics and the Olympics are actually pretty similar. We all have dreams and we all have goals. And you have to work hard to accomplish your dreams and goals.
Michael Phelps: (About pimping out his car) I had to do it. I got a Cadillac Escalade. Put some rims on it, threw a couple TV's in there, and installed a system. I stuck my Xbox in there, I had to go for it. I did just sell it though.
Michael Phelps: (About his diet) I eat pretty much whatever I want. I don't have a strict diet. It's all about cramming in as many calories into my system as I possibly can. To be honest with you, I have a tough time keeping weight on.
Michael Phelps: (How long is he in the pool for each day) Anywhere from two to five hours a day, but if you don't put the work in, you can't really expect to get much out of it. I'm more than willing to put the work in so I'm swimming fast at the end of the year.
Michael Phelps: (Where does he see himself in future Olympics) I don't know for sure. I'll definitely go another four years and then see what happens. I would love to swim in New York in 2012 if the games end up there and finish my career in America. It would be really exciting just to have the games here, and then for me to go out on that kind of stage in my own country would just be amazing, but I'm really trying not to get too ahead of myself.
Michael Phelps: (What experience did he gain from the 2000 Olympics competing as a 15 year old) I had a better idea of what competing on that grand a stage would be like. I think I was a little less nervous because of that previous experience.
Michael Phelps: (Has the magnitude of his accomplishments set in) If you'd asked me that right after the Olympics, I would have said no, but at this point I think it has. Everything that happened last summer was so much fun and totally changed my life forever.
Michael: The support I've received from my sponsors has enabled me to raise the bar in swimming.