Studies show that the risk of a “secret love” being revealed heightens romantic feelings for the partners, thanks to increased levels of phenylethylamine (PEA).
99
If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
The “cheerleader effect”, the theory that girls look more attractive in groups, is scientifically proven.
8
Babies' eyes do not produce tears until the baby is approximately six to eight weeks old.
58
On average women can hear better than men.
170
A study had men report their own penis size, and the average was found to be 6.1-6.5 inches. A subsequent clinical study actually measured penises, and found the average size to be 5.1-5.7 inches.
-3
A man named Charles Osborne had the hiccups for approximately sixty-nine years.
79
Half of all Americans over the age of 55 have no teeth.
39