GuideTech & Gadgets
Movement Reminders: A Friendly Nudge to Sit Less
A friendly look at how reminders on your phone or watch can help you sit less, and how to make them work for you.
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Wearables, apps, smart scales and the gear worth your attention.
GuideTech & Gadgets
Activity Trackers: A Friendly Nudge Toward More Movement
Researchers pooled 39 reviews and found activity trackers were linked to about 1,800 more steps a day. Here is how to get the most from yours and keep it fun.
GuideTech & Gadgets
VR Workouts: Fun Ways to Get Your Heart Pumping
Virtual reality games can make exercise feel like play. Here is what small studies show and how to try it safely.
GuideTech & Gadgets
Exergames: Playing Your Way to More Movement
Active video games and VR workouts can add a bit of movement to your day. A 2025 review of 20 trials found a small boost in activity, mostly in children, and no change in BMI.
GuideTech & Gadgets
Live Online Workouts and Sticking With Them
Does working out over live video help you keep showing up? A review of trials offers encouraging news, with a few honest caveats.
GuideTech & Gadgets
What Your Health App Does With Your Data
A study of 24 popular health apps found that most shared user data with other parties. A short checklist for choosing apps with care.
GuideTech & Gadgets
Chest Strap or Wrist? Heart Rate Monitors Compared
Chest straps and wrist sensors measure heart rate in different ways. A look at how they compare, when a wrist device is fine and how to get better readings.
GuideTech & Gadgets
Do Text Message Nudges Help With Weight Loss?
A review of text message programs found modest weight loss compared with control groups. Why short nudges may work and where they fall short.
GuideTech & Gadgets
BMI: A Useful Starting Point, Not the Whole Story
What BMI does well, where it falls short, and how to get more from the number with our free calculators.
GuideTech & Gadgets
Guessing Portions Is Hard: How Simple Tools Help
People of every size misjudge portions. Kitchen scales, measuring cups and food databases take the guesswork out, and a week or two of measuring can teach a lot.