Pretty smile of baby

The pretty smile of a baby is undoubtedly one of the most heartwarming sights in the world.

But have you ever wondered why it is that babies seem to smile for no reason at all?

Well, the truth is that while it may look like they are simply smiling out of happiness, in reality, their smiles are often a result of a reflex known as the "social smile". This reflex is typically triggered by interaction with their caregiver or other humans, and it's their way of connecting with those around them.

So, the next time you see a baby giving you a big, beautiful smile, remember that it's not just because they're happy - it's also because they're building important social skills.

Thanks for watching, and be sure to tune in for more fascinating topics.