Changes

Age of one the major considerations in deciding on a polyphasic schedule. In particular, younger people are advised to avoid cutting too much sleep, as their brains could still developing and cutting sleep could detrimentally affect this process.  

Age is one of the major considerations in deciding on a polyphasic schedule. In particular, younger people are advised to avoid cutting too much sleep, as their brains could still developing and cutting sleep could detrimentally affect this process.  

== Background ==

== Background ==