This type is described as responsible, practical and rule-conscious and organized. They make excellent leaders and their determination helps them achieve their goals. While they are usually liked by other people, they are somewhat loners and need a lot of time alone.

Typically type O is physically strong and can find success in sports.

In love they are most happy with their own type or AB type (seems like AB type is really lucky in love).

O tends to be loners or leaders and are intuitive, focused, self-reliant and daring. They handle stress better than other blood types and have strong immune systems, a well developed physique and a physically active nature. Blood type O's tend to have sluggish blood flow and feel better with vigorous exercise for about an hour each day.

Best Traits: Ambitious, athletic, robust and self-confident. Natural leaders.

Worst Traits: Arrogant, vain, insensitive and ruthless.

Famous Os: Al Capone, Gerald Ford, Mikhail Gorbachev, John Gotti, Crystal Kay, Queen Elizabeth II, John Lennon, Paul Newman, Elvis Presley, Ronald Reagan

O is most compatible with O, and AB.