![]()
Chapter 1
YOU ARE YOUR BODYMIND
How would you define personality? By any definition, itâs hugely important to our livesâand even our health. The personality of those closest to us and the interaction with our own personality profoundly affect how we feel and how we get along with family members, bosses, coworkers, neighbors, teachers, classmates, and even the people we encounter casually each day, such as waiters and waitresses, salespeople, or ticket-takers on the local commuter train.
If youâre having a bad day, the signals you put out (whether intentional or unintentional) can send other people scurrying. On the other hand, if the person behind the supermarket cash register is having a great day, he or she can lift you out of the doldrums through a megawatt smile, a brief conversation, or just a kindly look. Weâre social creatures, and highly attuned to each otherâs moods. But personality itself is something more permanent than mood, more characteristic of oneâs self. Itâs the underpinning of whatever the transient signals might be. Think of personality as climateâan overall expectation for a given place over time, regardless of the short-term shifts in temperature, wind, or rain.
The American Heritage Dictionary defines personality several ways, such as
- the dynamic character, self, or psyche that constitutes and animates the individual;
- the pattern of collective character, behavioral, temperamental, emotional, and mental traits of an individual; and
- the embodiment of distinctive traits of mind and behavior.1
Taken together, these definitions reference important concepts: character, mind, psyche, self. The most important aspect, however, might be embodiment. We cannot be a self, or have a mind, temperament, or personality, without a body. Surely youâve heard the phrase âIâm not feeling myself today.â Thatâs said by someone whose experience of him- or herself is a little off, due to how that person is feeling. And a feeling cannot be felt by anyone absent a body.
Now, fast-forward to a news report from the health sciences. It highlights research suggesting that extroverts who have high âdispositional energyââa sense of innate vigor or active engagement with lifeâhave dramatically lower levels of an immune system chemical known to trigger inflammation. The finding indicates that people who are extroverted and âengaged with lifeâ may be better protected than are other people against inflammatory-related illnesses such as rheumatoid arthritis and stress-related events such as heart attack and stroke. The researchers surmise that a personâs engagement level âmay reflect a fundamental, biologically based energy reserve, although no one has [yet] explained the biochemistry behind it.â2 This would come as no surprise to traditional Asian medical systems (see chapter 8), in which âvital energyâ is considered key to health and disease prevention, causation, and treatment. This vital energy is seen as a fundamental aspect of living beingsâit is literally embodied energy.
The researchers behind this particular health story, it should be pointed out, are part of a fast-growing discipline known as psychoneuroimmunology, which studies the interactions between brain and body, the nervous and immune systems, personality and stress, and emotions and health. Itâs a wide and fertile field of investigation, with fascinating implications for what makes us human.
How energetic we are . . . what weâre concerned about . . . what animates or drives us . . . how we feel about ourselves and the life weâre leading . . . these are at the crux of personality. It should come as no surprise that our biology is inextricably linked with temperament, health, and, more generally, how we feel.
THE ENERGY OF EMOTIONS
That our feelings are dynamic and energetic is easy to demonstrate. Just envision a time you became frustrated or angry and impulsively struck a wall or some piece of furniture. Or consider how drained you can become when worrying about a loved one if that personâs health takes a turn for the worse. Take the energy released from crying, by a good belly laugh, or during sexual activity. The amount of energy involved can be immense.
We might picture one of our greatest feelingsâjoyâas a radiation of happy energy out into the world, and one of our worst feelingsâdespairâas an inhibition of energy as the individual recedes into him- or herself. That sense of movement is reflected in the word emotion itself, which comes from the Latin emovere, meaning âto move fromâ or âto move out of.â Such movement is characterized by actual changes in activity within our bodiesâchanges in the bodyâs chemical profile, in the organs, in the degree of muscle contractions, and in our neural circuitry. In sum, change connotes movement, and movement connotes energy.
While we use calories to measure the intake and expenditure of physical energy, there is no currently accepted âscientificâ way to delineate emotional energy. However, an attempt to capture it linguistically has been attempted by many cultures and philosophies (and closely linked to concepts of health and healing). The Hindus call embodied energy prana; the Chinese know it as qi. Freud found something he termed the libido, and, around the same time as Freud, a French philosopher named Henri Bergson called it ĂŠlan vital, or life force. Whatever we choose to call it, it seems to correlate with the dispositional energy that can protect people from the debilitating effects of stress.
This energy, this e-motion, also ties us together. Itâs rather like a national currency. Our bills and coins go everywhere and are handled by everybody. We may feel flush with cash one day and relatively empty the next, but we feel something so long as weâre alive. Those feelings are part and parcel of who we are as living beings, as embodied selves who have a personality and the ability to make conscious decisions.
An important qualifier must be added here, namely that personality cannot be reduced to feelings alone. According to a leading personality theorist, Robert Cloninger of Washington University, emotional drives constitute four of seven proposed dimensions of personality. The four are novelty seeking, harm avoidance, reward dependence, and persistence. Together, they make up what Cloninger calls âtemperament.â The other three dimensions (self-directedness, cooperativeness, and self-transcendence) relate more to conscious abilities and predilections than feelings; these he terms âcharacter.â In Cloningerâs well-considered framework, character plus temperament add up to personality.3 Feelings, therefore, can be seen as a foundation of personalityâeven a driverâbut not the entirety in any sense.
THE FAR-FLUNG REACHES OF THE BODYMIND
More than what we think, what we recall, or what we imagineâall of which is considered to be âin our headsââwhat ultimately matters is the full body reality of our feelings. The late novelist Milan Kundera put it succinctly: ââI think, therefore I amâ is the statement of an intellectual who underrates toothaches.â4
Indeed, as we go about understanding personality, itâs important to take into account a crucial premise of psychoneuroimmunology. Namely, that the brain and the rest of the body are not separate, but integrated and interdependent. And there can be no âmindâ without a body. A term that captures this connection is bodymind, originated by futurist Ken Dychtwald in his 1977 book of that name.5
A helpful analogy is to picture Washington, D.C., and the rest of the country. If you were hosting a foreign visitor and wanted your guest to get to know the United States, you might start with Washington, D.C. (the nationâs capital and, in an admittedly limited way, its psyche). But, assuming you had the wherewithal, youâd also want to journey around, taking that person to places like Poughkeepsie, Mobile, Chicago, Bismarck, Salt Lake City, San Francisco (following our analogy, the various parts of the body). We are the âunitedâ states of Americaâfunctioning as one country, and a foreigner would not understand us if he or she concentrated solely on Washington, D.C., or on anywhere else.
The bodymind, too, is united. Itâs the amalgam of brain and body and all internal aspects of usâeverything we feel, think, know, intuit, remember, or have forgotten. How does this work? Hereâs an example. Think for a moment about your most indelible lifetime memory. What was it? Many citizens of a certain age and up would say it was President John F. Kennedyâs assassination in 1963. For others, it might be the explosion of the space shuttle Challenger in 1986. For still others it could be the time they bungee jumped or skied down a slope they never thought they could. Perhaps itâs when you won some major award, received a huge ovation, or heard your beloved say âI do.â The more intense the feeling or the more vivid the encounter, the stronger the recollection will be. Experiences that scare, shock, or thrill us are among our most indelible lifetime memories.
Such memories are whole body recollections, relying on connections between the amygdala (a part of the brain that stays on alert for major threats), the vagus nerve (which wanders all the way from the brain to the adrenal glands atop the kidneys), the adrenal glands themselves (which secrete hormones in response to âfight or flightâ messages), and the rest of the vital organs and nervous system. The existence of this information loopâcombined with the fact that the vagus nerve reaches almost all our internal organsâindicates that our most vibrant memories are encoded not just cognitively in the brain, but viscerally in the body. Furthermore, our vital organs together contain more chemical messengers (neurotransmitters and neuropeptides that are critical of brain activity), than does the brain itself!6 If youâve ever had a âgut feelingâ or experienced a âheartache,â you will understand that this is so.
MORE EVIDENCE FOR THE BODYMIND
Science is learning that the supposed line between the brain and the rest of the body is really no line at all. Chemical messengers are crossing it all the time. While researchers speak of the nervous system, or the endocrine system, or the immune system, the concepts are approximateâfor study purposes, mainly. Scientists once believed they were separate working systems . . . but no more.
Psychoneuroimmunology is shedding light on the connections. The more that is learned, the more insight is gained on how extensive the overlap really is. Psychoneuroimmunologyâthe term itselfâreflects this interface: psycho for mind; neuro for the neural and endocrine (hormonal) systems; and immuno for the immune system.
Take the immune system. In its detection and response to bacteria, viruses, and other foreign invaders, it is crucial, physiologically, to our sense of self.7 The components of the immune system are located throughout the body: in the thymus (at the base of the neck), the spleen, the lymph nodes (collections of tissue in the armpit, groin, neck, and elsewhere), the bone marrow, the tonsils, and especially the appendix. Immune cellsâwhite blood cellsâare sent throughout the body, especially to areas of injury or infection. Their activity produces the familiar inflammatory response as more blood is directed to the affected region and the surrounding tissues swell up.
That the immune system could be influenced by the brainâa truly seminal discoveryâwas first brought to light in 1975 by psychologist Robert Ader at the University of Rochester. He and his colleagues later advanced the idea that cells are lined with many specific receptors to which only specific molecules can attach themselves. These chemical messengers circulate throughout the body and are the vehicles through which the nervous, endocrine (hormonal), and immune systems communicate.
Such communication goes well beyond the immediate physical connection of neuron to neuron. Within the entire body, various âinformation substancesâ are constantly transmitting innumerable messages. Among these substances are peptides: chains of amino acids that are themselves the building blocks of proteins. A given peptideâs message is relayed through receptorsâsites on the surface of nerve cells through which a given message is transmitted to the cell nucleus. (Peptides associated with the nervous system and brain are labeled neuropeptides.)
FEELING BLUE
Have you ever noticed how one consequence of feeling âblueâ for an extended period of time is the greater likelihood of catching a cold or infection? This demonstrates how our state of feeling influences immunity. Stress, too, suppresses immune function through the action of adrenaline and noradrenaline along with other substances (collectively known as corticosteroids) released by the adrenal glands.
Psychoneuroimmunologists have found that such chemical messengers act reciprocally on the brain and the rest of the body. Researcher Candace Pert, then at Georgetown University, noticed a high concentration of peptide receptors âin virtually all locations where information from any of the five senses enters the nervous system.â The entire body can thus be characterized as a single sensing and feeling organ: a far-flung, unitary, psychosomatic network.8
THE MIND OF THE GUT
Surely youâve experienced a âgut feelingâ about something from time to time. Perhaps it concerned a relationship that seemed to be going well but somehow gave you pause . . . exchanges at your workplace that didnât seem to add up . . . or a major decision you were on the verge of making but had a nagging doubt about. These feelings donât come out of nowhere but emanate from a very tangible part of our bodyâthe gut.
The gut actually possesses its own self-contained nervous system, known as the enteric nervous system, which can operate in the complete absence of input from the brain or even the spinal cord. It is vast, encompassing more than one hundred million nerve cells in the s...