The left ear is more responsive to words of love and emotion whispered into it than the right.
40
In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
4
Parents receive 1 out of every 5 Valentines.
20
In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
81
When someone looks at a new love, the neural circuits that are usually associated with social judgment are suppressed.
130
Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
14
Ten seconds of hugging a day increases levels of oxytocin, which can reduce blood pressure, thus cutting the risk of heart disease.
26
Wearing red increases attraction.
30