is it better to work out all upper body 1 day or slit upper body workouts?

[MatJ]

should i work out all my upper body one day
and

then rest next day
and
do this 3 times a week?

[Anarkali]

Yeah, my friend does that. He works out 3-4 times a week and rests in between when he's not working out.

[Anarkali]

Yeah, my friend does that. He works out 3-4 times a week and rests in between when he's not working out.