Both chin-ups and hammer curls are excellent exercises to train your biceps at home.

Chin-ups primarily target your biceps and upper back muscles. To perform chin-ups, find a sturdy horizontal bar or purchase a doorway pull-up bar. Grip the bar with your palms facing towards you (underhand grip) and shoulder-width apart. Pull your body up towards the bar, keeping your elbows close to your body until your chin is above the bar. Lower yourself back down to the starting position and repeat.

Hammer curls are a variation of bicep curls that target the biceps and forearms. To perform hammer curls, you'll need a pair of dumbbells or objects with a comfortable grip that you can use as weights. Hold the weights with your palms parallel to each other and your arms extended by your sides. Curl the weights up towards your shoulders while maintaining the parallel grip. Lower the weights back down to the starting position and repeat.

Remember to start with a weight and repetition range that is appropriate for your current fitness level, and gradually increase the intensity as you progress.
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