Do Fitness Trackers Actually Work? What Science Says... 

Thank you for the video. It's not about motivating yourself, it is about the data. Any data about you will become VERY useful in the future

The best for heart rate, is a arm band sensor or a chest strap.

This was actually helpful information. Thanks!

thanks doc this is exactly what I expected, the watch having no significant effect on becoming more active, but if I only use it for the first 6 months and it helps me upload more stats to my strava feed about recent cycling then it may be worth it.

Thanks DR.G

great vid! No BS, just science

I like smart watches because I love collecting data. It makes sports so much more fun.

Dr. G, I’m a 55 year old unhealthy diabetic man with neuropathy and more. I would like to buy a device that can tell me (fairly accurately) my heart rate, oxygen, etc. I would like to start getting in shape but without knowing what my body is doing I’m afraid. Is there anything that could help someone who isn’t interested in tracking their running or miles but just monitoring their health while they do light to moderate exercise?

Great info. Thanks for posting. You just save me 60 bucks😂

Thank you for a great and informative video.

Dr G why you so charming staaahp