It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
165
Parents receive 1 out of every 5 Valentines.
20
Couples' personalities converge over time to make partners more and more similar.
235
Speed dating was invented by a Rabbi in 1999.
45
Ten seconds of hugging a day increases levels of oxytocin, which can reduce blood pressure, thus cutting the risk of heart disease.
26
When dragonflies mate, their tails form a love heart.
22
Wearing red increases attraction.
30