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.
Once you know the most common birthdays, the conversation naturally turns to the most popular times for conception. The cold weather and December celebrations is credited to the cluster of birthdays in September.