Why have mothers not been able to cure infant night-time crying for a long time?

Why have mothers not been able to cure infant night-time crying for a long time?

IsamuNakataniDoctorofScienceMajorinBiologyNightcryingcanbecured100%,butparentshavebeensufferingfromnightcryingforalongtime.Whycan'titbecured?Thereareseveralreasonsforthis.Parentsonlydowhattheycantostopthecrying.Unconsciouslybelievesthatthebabyisthecause.Doesnotwanttoadmitthatherparentingstyleisthecause.Believeswhatoldermotherssay.Parentingsupportworkersdo...Whyhavemothersnotbeenabletocureinfantnight-timecryingforalongtime?