Kissing an infection-free partner is good for your teeth!
141
Historically, sweat has been an active ingredient in perfume and love potions.
309
In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
81
Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
39
Ten seconds of hugging a day increases levels of oxytocin, which can reduce blood pressure, thus cutting the risk of heart disease.
26
Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
104
Men fall in love faster than women do.
32
If you mouth the word "colorful" to someone, it looks like you are saying "I love you".
634