Shorter daylight hours can affect sleep, productivity and state of mind. Light therapy, also known as phototherapy, may help. It uses light boxes emitting full-spectrum light to simulate sunlight.

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.

Fear and greed are potent motivators. When both of these forces push in the same direction, virtually no human being can resist.

In my view, the best gift is one that benefits both the receiver and the planet.

There's no single more powerful or simpler daily practice to further your health and well being than breath work.

The underlying idea is that you can prevent disease by balancing your body's pH... None of these claims are true. Furthermore, your body needs absolutely no help in adjusting its pH. Normally, the pH of blood and most body fluids is near seven, which is close to neutral. This is under very tight biological control because all of the chemical reactions that maintain life depend on it. Unless you have serious respiratory or kidney problems, body pH will remain in balance no matter what you eat or drink.

When people are told to "eat many small meals," what they may actually hear is "eat all the time," making them likely to respond with some degree of compulsive overeating. It's no coincidence, I think, that obesity rates began rising rapidly in the 1980s more or less in tandem with this widespread endorsement of more frequent meals.