Advanced fitness enthusiasts, on the other hand, could perform high-rep sets and even incorporate harder variations like weighted sit-ups. Is 100 sit-ups a day good? Performing 100 sit-ups a day ...

Bored of planks and crunches? Why not try mixing things up with a killer ab exercise that targets most of the muscles in your mid-section? The zombie sit-up isn’t for the faint of heart ...

Chinta Ramana, Headmaster of a Zilla Parishad High School in Vizianagaram, did a bunch of sit-ups holding his ears in front of his students, questioning his ability to teach them anything.