Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
34
When you fall in love, that 'high' feeling is caused by a flood of dopamine that is similar to that of cocaine.
44
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
Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
39
If you mouth the word "colorful" to someone, it looks like you are saying "I love you".
634
Couples' personalities converge over time to make partners more and more similar.
235
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