This is Your Brain on Birth Control, a new book by Dr. Sara E. Hill takes a remarkably deep dive into the myriad ways that hormonal contraception alters women’s bodies, demonstrating that our sex hormones have an enormous impact on how our brains and bodies function. As we learn more about the consequences of altering women’s hormonal balance with contraception, we’ve come to find that those consequences can be very serious, indeed—in some cases, even fatal. Although the book is about the consequences of meddling with the hormones of women of reproductive age, it should also serve as a cautionary...