Testosterone…

A shirtless man stands in a bedroom, looking at his reflection in a mirror with a concerned expression, while another shirtless man stands with his back to the camera. A muscular man in a white tank top performs a cable chest press in a gym, pulling the handles toward his chest with a strained expression. A muscular man in a red tank top performs a seated cable row, pulling the handles toward his torso with a focused expression. A close-up shows a muscular man's arm as he performs a bicep curl with a dumbbell, his arm and shoulder muscles visibly tensed. A muscular woman with blonde hair and a