You've been paying a tax on being healthy. Four dollars here for hydration, five there for sleep, another subscription for fasting, another for habits, and each one only ever sees its own slice of you. Your Apple Watch is already collecting the whole picture; what's missing is a set of apps built to work with

You've been paying a tax on being healthy. Four dollars here for hydration, five there for sleep, another subscription for fasting, another for habits, and each one only ever sees its own slice of you. Your Apple Watch is already collecting the whole picture; what's missing is a set of apps built to work with