The Science Behind Gender Selection in Pregnancies

For years, many believed that conceiving a boy or a girl was merely a matter of chance, like a coin toss with equal odds. However, a groundbreaking study published on July 18, 2025, in Science Advances challenges this notion. Researchers analyzed extensive data and found that biological and environmental factors significantly influence a couple’s likelihood of having boys or girls. This revelation not only sheds light on how genetics might play a role but also hints at the complexities of human reproduction, suggesting that the outcome may not be as random as previously thought. A deeper understanding of these dynamics could transform how families plan for children in the future.