1. The more times you fall in love, the richer your emotional experience. The higher your emotional value, the less your heart will move.

Love words are more pleasing to the ear.

Kissing can help you lose weight. A kiss consumes about 12 calories, more than twice as much as usual.

Hugging can strengthen the affection between lovers. When two people hug for more than 20 seconds, they will produce a hormone called oxytocin.

5. Uncertainty will make the relationship between lovers stronger, Romeo and Juliet effect: when there is external oppression or interference in adversity, the relationship between lovers will be stronger and closer.

6. Boys will get old suddenly and girls will get old slowly. After all, boys and girls have different youth cycles.

7. The temperature of girls' bath water is generally too hot for boys.

8. When the two sides quarrel, what really makes you angry may not be what happened in front of you, but what happened in front of you triggered the traumatic complex of the past.

9. Increasing the frequency of appearing in front of a person will increase his goodwill towards you.

10. A husband who is used to kissing his wife every morning lives about five years longer than a husband who is not used to this habit.

1 1. It is easier to get a good impression by standing on the left hand side of the opposite sex.

12 The longest infatuation period is four months, and then you really like each other.

13. True love does not spoil you as a little princess, but grows you into a little woman.