By now you should be familiar with the tear-jerking ability Thai ad directors have. This new commercial is no different and tells a story of an elderly woman who wants to lose weight desperately. But for what reason?

The clip focuses on her determination to lose weight. She's seen running, and doing various workouts. She wakes up early to do all that throughout the day.

Later we find out that she's actually doing it for her son.

Watch the clip below for more.

There's nothing more powerful than a mother's love.