Andrew Huberman prefers lifting heavy and slow with 3-5 minutes rest between sets, and considers anything more than 6 repetitions to feel like cardio.

“so if it's a shoulder press for instance I'll do a couple warm-up sets and then the work sets I try and move the weight and generally I tend to work pretty pretty heavy in the for me heavy for me in the 4 to8 repetition range I'll try and move the weight as quickly as I can on the concentric phase the lifting phase and then at least twice as slow on the lowering phase and then I pause while keeping the muscles under tension”

“I really concentrate on keeping the muscle under tension the entire time in fact I'll lift the weight off the stack if it's a machine or if it's a free weight just a little bit engage the muscles that I'm trying to activate or train and then keep it under tension throughout the concentric the contraction and the lowering of that weight and then never actually set it down until the end of the set AKA increasing the time under tension”

“I like to lift heavy and slow, like three to five minutes between sets. Now I'm in a two to five repetition range. Anything more than six feels like cardio.”