Many very young children wonder how their children sleep, enough sleep because every baby or thinking, fussy sleeping... In fact, it is no longer a problem if they understand the biological rhythm in your baby's sleep.
All activities of living organisms is a periodic series of changes. All expressions that are called biological rhythms. Interestingly, there are many biological rhythms of life corresponding to the rhythm of natural movement that we can easily see them. Such as the rhythm method - human sleep, work on beat - night of animals and flowering period puncture results of each spring plants...
