I am in total confusion I read in a magazine (flex) that to build muscle you should use heavy weights and low reps and 3-4 sets. Yet I read in an other article you should use light weights and high reps with 3-4 sets.
this may sound like a real newbie question ( aint that right THAI BRI
) but its got me in a real dilema.
Help
this may sound like a real newbie question ( aint that right THAI BRI

Help
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