Asking them, along with the rest of the developing world, to go back to 2000 emission levels with a 2050 population would mean putting them on a very drastic energy diet.

FORBES: Uncommon Sense

Same with the rest of your energy diet.

FORBES: Insights: The energy diet that flopped

There's more reason than ever to eat porridge for breakfast, especially if you have young children -- a new study reports that kids score higher on exams if they follow a regular diet of the high energy breakfast cereal before the age of three.

CNN: Vital Signs health tips

Proper diet and exercise also play a role in your energy level.

CNN: Caffeinated moms drink up to keep up

Finally, during treatment, diet is very important to maintain health and optimize energy levels, but before taking any supplements, it is best to consult with a registered dietitian, preferably one that has experience with cancer treatment, because some supplements may actually interfere with chemotherapy or radiation.

CNN: Does diet really matter in breast cancer?

In the womb and during the first couple of years, the body adjusts to a poor diet by squirrelling away whatever it can as fat (an energy reserve).

ECONOMIST: Poverty and food