As temperatures rise and daylight stretches into the evening, many women expect to feel more energized and relaxed. However, emerging research suggests that early summer may bring an unexpected biological shift. Scientists continue to uncover seasonal patterns in women’s cortisol levels, the hormone most closely linked to the body’s stress response. While cortisol is essential for regulating energy, metabolism, and inflammation, fluctuations can affect everything from sleep quality to mood and concentration. Understanding why these changes occur can help women better manage their health during the transition into summer.
