Stop making reps and rest so damn complicated! Here's how to program them properly into your training:
Power: 1-3 Reps/2-3 Min Rest
Strength: 4-8 Reps/1.5-2 Min Rest
Muscle: 8-15 Reps/1-1.5 Min Rest
Pump: 15-25 Reps/.5-1 Min Rest
Endurance: 25+ Reps/Try Not To Cry
*NOTE: Sets must be taken to technical failure
Training a variety of rep ranges allows people to develop different physical characteristics simultaneously, leading to more gains across the lifespan. Especially for health and longevity.