Self-Help Stuff That Works Home About me Explore this site Immediate relief of negative feelings Making changes stick Share your favorite principle About the book: Self-Help Stuff That Works back to relationships community send this page to a friend advertisement

advertisement why pessimism shuts down our immune system PESSIMISM PRODUCES DEPRESSION. And when a person is depressed, certain brain hormones become depleted, creating a chain of biochemical events that end up slowing down the activity of the immune system. For example, two key players in our immune systems are T cells and NK cells. T CELLS recognize invaders (like viruses) and make more copies of themselves to kill off the invaders. Pessimists’ T cells don’t multiply as quickly as optimists’, allowing invaders to get the upper hand. NK CELLS circulate in the blood and kill whatever they come across that they identify as foreign (like cancer cells). Pessimists’ NK cells can identify foreign entities, but they don’t destroy them as well as the optimists’ NK cells. Learn more about how to reduce your pessimism Here's a conversational chapter on optimism from a future book: Conversation on Optimism If worry is a problem for you, or even if you would like to simply worry less even though you don't worry that much, you might like to read this: The Ocelot Blues Learn how to prevent yourself from falling into the common traps we are all prone to because of the structure of the human brain: Thoughtical Illusions advertisement   top table of contents | immediate relief of negative feelings | making changes stick share your favorite principle | my book

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