Have decided to get fit, so am now taking the bike instead of the bus to/from work, swim twice a week and do an hour of cardio workout everyday.
I've heard somewhere something about not eating for ½ - 1 hr after exercising as then your body will carry on burning calories even in rested state. Is that right? What is the precise timeframe?
Ecercise raises your metabolism. After exercise, your metabolism stays high for a while. Anything you eat will be processed and burned up very efficiently.
If you want your body to "use" your food instead of just "storing" it, you should eat in the 1 hour window after exercice.
I eat bananas on the way to the gym (for energy) and carry protein bars in my gym bag to eat as soon as I've finished.