Period Power is a profound but practical blueprint for aligning daily life with the menstrual cycle, to give women a no-nonsense explanation of what the hell happens to their hormones every month and how they can use each phase to its full advantage.Ninety per cent of women experience symptoms of PMS, a syndrome which features a wide range of signs and symptoms and yet there’s an enduring lack of understanding about what it actually is, and a disappointingly meager range of t