Hello everyone, total noob here.
I just started (like yesterday) lifting and I started out with bicep curls. Today its almost like my arms can't totally relax straight and there's tightness and pain on the top of my arms just above my elbows (maybe the biceps tendon?). I only did 20lbs at 3 sets/20 reps (like I said, I'm a total noob-with little arms I might add).
How can I prevent this kind of soreness in the future?