Join the weight loss challenge: https://briansyuki.com/

You can't go wrong with this flat belly workout. It's fun, simple, and extremely effective.
Jumping exercises aren't the answer if you have a flat tummy. It's better to do this low impact. It's doable every day without hurting your joints.
And who needs fancy workout equipment when you have this. You will lose belly fat and tone your entire body without using equipment.
Enjoy the walk at home workout for a flat belly in 40 minutes.