The authors take aim at your daily - or circadian - rhythm. This is difficult because the circadian cycle is superimposed on natures annual cycle. If your goa

The authors take aim at your daily - or circadian - rhythm. This is difficult because the circadian cycle is superimposed on natures annual cycle. If your goal is weight loss, you should concentrate on the time of year - not the time of day. The 3 months between the fall equinox and the winter solstice (Oct - Dec) are the most difficult for dieters. Not because of the holidays, but because nature is preparing you to hibernate. The best period to start dieting is between the winter solstice and the spring equinox (Jan - Mar). Each day tends to become easier to control your eating. The period between the spring and fall equinoxes (Apr - Sep) are usually the easiest to maintain healthy eating habits. Yes, there can be exceptions, but if you chart your daily weight, you will see the pattern. The good news is that NOW (Jan) is the best time of the year to start a diet. Don't put it off because at this time of the year nature will conspire to assist you.