Do I have to reach failure in every single sets in order to build muscle or just lets say reaching failure in 2 sets out of 4 would do? - Quora
Do I have to reach failure in every single sets in order to build muscle or just lets say reaching failure in 2 sets out of 4 would do? - Quora
![The Lifting Guide – Part 2: Your sets – the difference between progress and failure — ScienceStrength The Lifting Guide – Part 2: Your sets – the difference between progress and failure — ScienceStrength](https://images.squarespace-cdn.com/content/v1/586ba2d39de4bb268243b6e5/1518611443412-8PXHK3ZY93L1BLTX71NH/Screenshot+%281267%29.png)