Have a read at these 5 articles, I think in they answer your questions.
http://healthdivas.blogspot.co.uk/2012/09/why-does-breakfast-make-me-hungry.html
http://healthdivas.blogspot.co.uk/2012/09/why-exercising-at-this-time-of-day-is.html
http://healthdivas.blogspot.co.uk/2012/09/the-power-of-intermittent-fasting.html
http://healthdivas.blogspot.co.uk/2012/09/the-intermittent-fasting-dilemma-how.html
http://healthdivas.blogspot.co.uk/2012/09/what-will-cause-you-to-lose-more-fat.html
