Some interesting facts about love:

1. Falling in love releases the same chemicals in the brain as taking cocaine, such as dopamine, oxytocin, and adrenaline.

2. The heart has long been a symbol of love, but the heart actually has nothing to do with emotions. It's the brain that processes emotions, including love.

3. In some cultures, couples are not allowed to exchange words until they are married. Instead, they communicate through eye contact and body language.

4. The longest kiss on record lasted 58 hours, 35 minutes, and 58 seconds.

5. The feeling of falling in love can be intense and short-lived. Studies have shown that the average lifespan of romantic love is just two years.

6. The tradition of giving engagement rings dates back to ancient Rome. The rings were usually made of iron and symbolized a legal agreement rather than a romantic gesture.

7. Kissing is not universal across all cultures. In some cultures, kissing is not a common or accepted form of affection.

8. Studies have shown that people who are in love have lower levels of the stress hormone cortisol.

9. Research has found that couples who regularly express gratitude toward one another tend to have stronger, more positive relationships.

10. Love can be addictive. When we are in love, our brains release the hormone dopamine, which can create a craving for more of that feeling.