The field of space exploration has long been shaped by assumptions based on male physiology, which have been mistakenly treated as a universal standard. This bias has influenced everything from spacecraft design to medical research, often overlooking the unique biological differences between men and women. As a result, much of the early research on how space affects the human body focused primarily on male astronauts, leaving gaps in understanding how women experience the challenges of space travel. It wasn't until more than sixty years after Valentina Tereshkova's historic flight—when she became the first woman in space in 1963—that scientists began to take seriously the need to study how the extreme conditions of space affect the female body. Tereshkova's mission was a landmark moment in space history, but it also highlighted the lack of attention given to the specific health needs of female astronauts in the decades that followed. In recent years, space medicine has started to address these long-overlooked issues. Researchers are now examining how factors like microgravity, radiation, and isolation impact the vaginal microbiome, which plays a crucial role in women's health. This includes understanding how these conditions might affect everything from reproductive health to the body's ability to fight infections. Such studies are essential for ensuring that all astronauts, regardless of gender, are properly prepared for the physical and biological challenges of space travel. This shift in focus is not only about fairness but also about safety and effectiveness. By incorporating a more comprehensive understanding of human biology into space research, scientists can develop better medical protocols and equipment that benefit all astronauts. As space exploration continues to expand, including missions to the Moon and Mars, ensuring that all astronauts are prepared for the unique challenges of space is more important than ever.