We all have to remember we are only human and we will all stumble sometime. The important thing is to just brush it off and start again.
How much do you sleep each night? For dieters who got a full 8.5 hours sleep, more than half of the weight they lost was fat. For those who slept just 5.5 hours, only 25% of the weight they lost was fat - the other 75% was muscle or protein.