Do you read your horoscope each day? If your daily dose of Mystic Meg helps give you perspective on your day or enables you to work out your 'star sign' personality according to the conjunction of the planets, consider this - your blood type might just do the same...
Now, although it's never been scientifically proven, in Japan, it's widely believed that blood groups predict personality traits - from temperament to compatibility, to what kind of lover you are to what type of foods you should be eating.
Despite the theory being discredited many times, this influence still lingers on in Japanese culture (and beyond).
And why not? It's no sillier than believing your personality is in the hands of the solar planets, or that your sandwich choice or sleep position reveals all about what you're like as a person.
The idea first came about in the 1920's and is still publicly used today - who could forget Japan's minister Ryu Matsumoto blaming his blood type on his abrasive behaviour?
According to experts, such as Dr. Peter D'Adamo, author of Eat Right For Your Type, "Your blood is the key to unlocking the secrets to your biochemical individuality."
So, have a scroll through to see whether your blood type reveals anything about your personality...
Personality traits: Conservative, introverted, reserved, patient, a perfectionist. Worst traits: Obsessive, self-conscious, sometimes uptight and stubborn People with blood type A are to referred to as 'farmers' and are considerate to others and extremely loyal. They can be quite secretive and reluctant to share their feelings. Type A diet: "Type A's flourish on a vegetarian diet," says Dr. Peter D'Adamo, author of Eat Right For Your Type. "Many people find it difficult to move away from the typical meat and potatoes to soy proteins, grains and vegetables. But it is particularly important for sensitive Type A's to eat their foods in as natural a state as possible: pure, fresh and organic."
Personality traits: Creative, flexible, individualistic, optimistic, passionate. Worst traits: Forgetful and sometimes, irresponsible Type B personalities are empathetic, easily understanding others' points of view, yet often hesitating to challenge or confront. Chameleon-like and flexible, they make good friends. However, type B men have a different reputation and aren't considered as 'marriage material' in Korea, where they are perceived as 'players' and are often selfish and mercurial. People who are B blood type have a different set of characteristics than people who are Type O or Type A - they are susceptible to different diseases, they should eat different foods and exercise in a completely different manner. Type B diet: Type B's have tolerant digestive systems but should avoid meats like chicken, beef and pork. "Type B's should avoid is chicken," says Dr. Peter D'Adamo. "Chicken contains a blood type B agglutinating lectin in its muscle tissue. Although chicken is a lean meat, the issue is the power of an agglutinating lectin attacking your bloodstream and the potential for it to lead to strokes and immune disorders."
Personality traits: Cool, controlled, introverted, rational Worst traits: Critical, indecisive, unforgiving and aloof Type AB personalities tend to be very charming and popular. They don't sweat the small stuff and can be seen as spiritual and even at times, a bit "flaky". They are believed to be controlled by their heads rather than their hearts. Sometimes it is difficult to be an AB. AB's don't like to fit in anyone else's "boxes". If they feel too confined, they'll break out of that box and do things their own way. Type AB diet: "Type AB's have a sensitive digestive tract and should avoid chicken, beef and pork but should enjoy seafood, tofu, dairy and most produce, advises Dr. Peter D'Adamo.
Personality traits: Ambitious, self-confident, robust Worst traits: Arrogant, insensitive, vain People with blood type O are viewed as natural leaders and are often keen athletes. They are outgoing, expressive and passionate. They have an insatiable appetite for success and aren't afraid to take risks or a gamble. Type O diet: Type O's have the oldest digestive memory tract, so their fast metabolism will benefit from lean meats, poultry and plenty of fish. Type O's are advised to restrict their grain and bread intake.