You're not biased, but your life is surely less complex than it will be when you are in your 40s. 40 is also when many people who've always had high metabolism

You're not biased, but your life is surely less complex than it will be when you are in your 40s. 40 is also when many people who've always had high metabolism suddenly change and begin to gain weight. While the article sort of points at 20-somethings as the Fitbit worshippers, it's not for them. It's for older adults who let life get out of control and are looking for some way to get back in shape. That's what I see on the streets, at least.