Changes in posture are reflected by changes in neurohormone levels. One study from Harvard found that standing or sitting in an open, expansive posture increases testosterone and decreases the stress hormone cortisol.14 These changes in neurohormones likely contribute to the other effects of confident postures described above. The take-home message is that if you’re feeling doubtful, keep your chin up, stand up straight, and stick out your chest. It will help you be more decisive and internalize positive thoughts, and it will give you more energy.
