Apple suddenly told me I was climbing a lot of stairs and I tried to find out why
DeanDrobot/Getty Images It’s become oddly compulsory. Hypnotic, even. Someone famous once muttered that you need to take 10,000 steps every day if you want to stay alive. And suddenly you had apps that could measure every step you take, every move you make. Also: The best smartwatches you can buy: Apple, Samsung, Google, and more … Read more