Well, memory is a very complex process that scientists are just starting to fully understand. However, you have hit upon an important (and sometimes controversial) idea that boys' brains are different from girls' brains. In neurosciences, this difference is termed "dimorphic," and it means that there are anatomical as well as functional differences between boys brains and girls' brains. In general, during a baby's development, his or her brain will be affected by the relative amounts of hormones that are present, testosterone imposes a male brain; the default is female.

Medical scientists have monitored brain activity using a non invasive imaging technique called NMR - nuclear magnetic resonance imaging. They discovered that, when men and women were asked to match like sounding words, men used the right hand side of the brain and women used both left and right. What is not clear is if this reflects women's greater ability in communication skills or bears any relevance to differences in intelligence. What it may tell us is that the brain is much more versatile than we ever had imagined, and that there might be many ways to solve a problem.

So, by reviewing the current scientific evidence, it appears that differences in many cognitive behaviors (for example, memory) are related more to individual differences between people than to whether people are female or male.

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I hope this gives you some idea that thinking and memory work are very interesting areas and maybe you will study it one day and help us understand this subject better.