When you fall in love, that 'high' feeling is caused by a flood of dopamine that is similar to that of cocaine.
44
Historically, sweat has been an active ingredient in perfume and love potions.
309
Kissing an infection-free partner is good for your teeth!
141
In Korea, if you do not receive any gift on Valentine's day then all the singles go to Korean restaurants and eat black noodles to celebrate (or mourn) their single status.
27
When someone looks at a new love, the neural circuits that are usually associated with social judgment are suppressed.
130
Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
104