More people know their horoscope than their blood type

Do you know your blood type?  How about your horoscope?  A recent study by Quest Diagnostics shows that only 51% of people know their blood type, while 66% know their horoscope.  It is easier to find your horoscope, you can look it up online only needing to know your birthday.  Finding your blood type you need to talk to your doctor, your parent, check blood donation records, or look at back at your medical records.