Studies suggest there is no significant difference in breath-holding time between boys and girls.
While individual capacity for breath-holding can vary widely based on factors like training, lung capacity, and overall health, research indicates that gender itself does not play a major role in determining breath-holding ability. The reference states specifically that "no significant difference was found in BHT between males and females." Therefore, assuming similar levels of fitness and training, neither boys nor girls inherently possess a greater ability to hold their breath for longer periods.
It's important to remember that attempting to hold one's breath for extended periods can be dangerous. Always practice breath-holding exercises under the supervision of a qualified professional.