When it comes to losing, maintaining or gaining weight, calories count. Thanks to a host of wearable devices and mobile apps, counting calories has never been easier. This matters because changing ...

Old habits die hard. Just when we thought we'd moved past problematic metrics and obsessive calorie tracking, an AI calorie counter proves we really haven't changed all that much. The new app, called ...

We are often told to watch what we eat, but Maddi Cerasuolo disagrees with taking this advice too literally. In a TikTok video, she explains why she "hates" calorie counting, a popular method used to ...

When you invest in a smartwatch like the Apple Watch Series 10, a side benefit is you're getting a device that can help you ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. When you track an ...