The notion that a human being should be constantly happy is a uniquely modern, uniquely American, uniquely destructive idea.

I think instead [of happiness] we should be working for contentment... an inner sense of fulfillment that's relatively independent of external circumstances.

I believe that it may be normal, healthy, and even productive to experience mild to moderate depression from time to time as part of the variable emotional spectrum, either as an appropriate response to situations or as a way of turning inward and mentally chewing over problems to find solutions.

In my view, prescribing antidepressant drugs is too often a quick and easy substitute for developing treatment plans that address the totality of health concerns and lifestyle factors that have an impact on wellness, including emotional wellness.

Among other things, neuroplasticity means that emotions such as happiness and compassion can be cultivated in much the same way that a person can learn through repetition to play golf and basketball or master a musical instrument, and that such practice changes the activity and physical aspects of specific brain areas.

Carbohydrate density is simple to calculate -- just divide the quantity of carbohydrate in food by the weight of the food. The more carbs packed into a given gram of food, the higher its carbohydrate density.

People who are contented and serene sleep well. They fall asleep easily, stay asleep, and wake refreshed. Conversely, people who are anxious, stressed, or depressed do not sleep well, and chronic insomnia is strongly associated with mood disorders. These are clear correlations, but what is cause and what is effect is not clear. Most experts agree that sleep and mood are closely related, that healthy sleep can enhance emotional well-being, while insufficient quantity or quality of sleep can adversely affect it.

My personal opinion is that the neutral position on the mood spectrum—what I called emotional sea level—is nothappiness but rather contentment and the calm acceptance that is the goal of many kinds of spiritual practice.