Rising early in the day makes an overall difference in the number of steps one walks during the entire day, with the late risers moving around less.

The chronotypes we form are not permanent in most cases but have a rhythm of their own, spawning years, and shifting from Morning to Day and eventually, Night, based on our age.

Our various biochemical signals, daily lifestyle, and genetic inclinations develop a specific chronotype in us, that is basically our overall biological response to the outside world.