1 : it only takes 4 minutes to realize whether you like someone or not.2: when two lovers gaze at eachothers eyes, their heart rates synchronize
3: falling in love has the same neurological effects similar to those of cocaine.
4: cuddling releases natural pain killers.
5: people with the same level of attractiveness are more likely to end up together.
6: couples who are too similar similar are not likely to last. So opposites do attract.
7: a broken heart is not just a metaphor. This condition is called the Broken Heart Syndrome. Deep emotional distress triggers the brain to distribute certain chemicals that significantly weaken one's heart, leading to strong chest pains and shortness of breath
8: an attractive face is preferred over an attractive body for long-term relationships. There is actual evidence of this.
9: butterflies in the stomache are real but not literally. But actually adrenaline flowing through your blood.
10: dialated pupils shows how attracted you are to someone and makes you more attractive.
To be continued....