Tom Rath

People with high levels of wellbeing have been careful to work out early in the morning and not to have heavy meals throughout the day because you kind of fall off a cliff in terms of your energy by 2 or 3:00 if you have a lunch with a lot of heavy foods.

Employees who report receiving recognition and praise within the last seven days show increased productivity, get higher scores from customers, and have better safety records. They're just more engaged at work.

By irreducibly complex I mean a single system composed of several well-matched, interacting parts that contribute to the basic function, wherein the removal of any one of the parts causes the system to effectively cease functioning.

The constancy of the blood sugar level is maintained by a complex physiological mechanism, a homeostatic mechanism of the same order as those which maintain the body temperature, the blood pressure or the heart rate at normal levels and control many other functions.