Every fitness fad is The One.

Each time one comes along, it is touted as the ultimate way to better health.

For many people at the moment, “10,000 steps a day” is The One.

The bloom may be coming off the rose, since questions like, “Is it a magic number or marketing ruse?” are being asked about it.

An experiment suggested that taking three short brisk walks a day was more beneficial than clocking 10,000 steps.

Another thing which may make us think twice about the trend is how companies selling fitness trackers rode the bandwagon of its popularity.

Fitbit, the world’s biggest maker of fitness trackers, started all users with the 10,000 goal. The company included it as a default in their trackers and smart watches. It had also put up blog posts on why people should strive to hit the target.

Before you shake your fist (and tracker to get more steps) at people questioning the 10,000 steps mantra, know that experts agree it’s still a good way to get us moving.

Read on to find out what other fitness fads have been The Ones, and also what others have been The What On Earth Were You Thinking.