Moon's Influence on Menstrual Cycle Weakens Due to Modern Lifestyles
A recent study has delved into the complex relationship between the menstrual cycle and the lunar cycle, revealing fascinating insights into how human biology interacts with celestial forces. The research, conducted by chronobiologists, has shed light on how our modern lifestyles have altered this ancient synchronization.
Historically, women's menstrual cycles were closely aligned with the lunar cycle, averaging around 28 days, similar to the 29.5 days between one full moon and the next. This synchronization was particularly strong before 2010. However, a shift occurred after this point, with menstrual cycles now primarily aligning with the lunar cycle only during times of strong gravitational forces, such as in January.
The moon's gravitational force is known to influence Earth's water masses, creating the daily rhythm of tides and ebb. Similarly, it affects human sleep and psyche, with people experiencing less sleep around full and new moons. Yet, the influence of the moon on the female cycle remains a topic of debate and mystery.
Scientists have identified several factors contributing to this change. Increased exposure to artificial light, especially after 2010, has disrupted the coupling of the 'moon clock' in humans to the lunar cycle. The widespread use of smartphones and digital devices has also played a significant role in this disruption. The study analyzed records of 176 women, suggesting that increased artificial light significantly impairs the adjustment of the menstrual cycle to the lunar cycle.
While the moon's phases continue to affect the internal clock of Earth's inhabitants and the reproductive behavior of some animals, the synchronization between the menstrual cycle and the lunar cycle has weakened due to artificially lit nights. Further research is needed to fully understand this complex relationship and its implications for human health and well-being.
