If laughter is the best medicine, this baby has a pretty magical elixir.

The internet is in stitches after video of this baby's infectious laugh was uploaded online.

In the video, a dad is feeding his baby when he pretends to drop her snack. Suddenly, the baby girl erupts into a loud laugh.

As dad continues to play pretend, her belly laughs grow and grow.

We dare you not to smile after watching this video.