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.
Check out this snazzy visualization to find out. The visualization used data from 1973 to 1999 to chart popular birthdays and figured out when the most popular time to pop out babies were. So if you ever thought you were unique, you're not. Especially if you were born in the month of September.