CUPERTINO, June 13 -- For most women, perimenopause begins quietly - irregular cycles, disrupted sleep, a sense that something has shifted - and ends, months or years later, with a diagnosis that arrives long after the transition began. Apple, this week, said the iPhone can change that.

With iOS 27 and watchOS 27, announced at the company's Worldwide Developers Conference, Apple is introducing what its health director called a response to one of medicine's most consistent blind spots: a life stage that affects roughly half the world's population but has historically received almost no tailored clinical support. The new Cycle Tracking feature in the Health app will now monitor logged cycle data over time and, for users aged 40 and older, ...