The main causes of eye floaters, or small moving shapes in a person's field of vision, are small flecks of protein called collagen, according to WebMD. Other less common causes include eye injury, diabetic retinopathy and eye disease.
While July, August and September are very popular months for birthdays, it is somewhat notable that July 4, Independence Day, appears to be an obvious uncommon birthday in the U.S. Most common: September 16 is the most popular birthday, and December 25 and February 29 are least popular.
A couple of fun facts: The most popular birth date is September 16th; the least popular date is split between February 29th (no duh) and December 25th (there can be only one?). As for the prevalency of September birth dates â well, let's just say it takes a lot of alcohol to get through the holiday season in one piece. You can check out Andy Kriebel's interactive version of the same infographic over here.