一位叫 W Dougals Brodie的医生 (M.D.) 在观察了各种癌症病人30多年后是这样概括各类癌症性格的（Cancer Personality）：
1 Being highly conscientious, caring, dutiful, responsible, hard-working, and usually above average intelligence.
2 Exhibits a strong tendency towards carrying other people’s burdens and toward taking on extra obligations, and often “worrying for others”.
3 Having a deep – seated need to make others happy. Being a “people pleaser” with a great need for approval.
4 Often lacking closeness with one or both parents, which sometimes, later in life, results in lack of closeness with spouse or others who would normally be close.
5 Harbours long – suppressed toxic emotions, such as anger, resentment, and /or hostility. The cancer – susceptible individual typically internalizes such emotions and has great difficulty expressing them.
6 Reacts adversely to stress and often unable to cope adequately with such stress. Usually experiences an especially damaging event about 2 years before the onset of detectable cancer.
对于健康的定义，我喜欢这样的表述（来自一本书）：”Health is the ability of a living organism to experience stress and remain symptom free, wherein the systems of the body exist in a natural state of harmony and equipoise, each to other.”
上段话中对健康有影响的 stress 包括哪些呢？举例来讲，可以包括气候、温度、细菌、病毒、环境污染、腐败的食物、不洁净的水、缺乏足够的食物、太多食物、过量的饮水或缺水、营养不良、睡眠不足、焦虑、争吵、悲伤、衰老还有 prescription medication 等等，这都是对健康有不良影响的stress。（为了清楚地表述，下面的话我引述书中的原文）But stress all by itself is not enough to make us sick ( unless it is very strong stress），it is the strength of the body and its degree of health, that makes the difference and tips the scale in the direction of health or illness。
当身体承受着不良 stress 时，会有下面两种反应：
1 The stress is countered by our built in defence mechanisms, the body maintain its integrity and balance, and no symptoms are generated. Health persists.
2 The stress is too strong for our body to handle. The stress breaks through our defences and destabilizes the system. The body compensates and generates symptoms.
If the body is strong enough, it restabilises itself all by itself, and the symptoms disappear. Health is recovered；If the body is not strong enough, it remains de-stabilized, and the symptoms of the illness persist until a medical treatment is delivered.
Medical treatments which suppress the symptoms of the illness only manage the symptoms of the diseases；Medical treatments that are curative bring the systems of the body into a state of balance and equipoise, at which time the body stops generating the symptoms of the illness and a balanced state of health resumes: the illness is cured.
因此关于癌症性格以及情绪与癌症的关系，不难得出这样的结论：不是每个具有癌症性格的人都会患上癌症，这与个人身体素质有巨大关系；但癌症性格可能在大部分癌症患者的患病原因里占有一席之地；而且患者的不良情绪会进一步影响患者日后的康复。在我读过的许多抗癌、治癌的书中，康复的病人们和医生们（包括主流和非主流）都强调了这点。
Dr Veronique Desaulniers（这位医生本人就是乳腺癌康复者）在她的书 Healing Breast Cancer Naturally 用 4D 来概括癌症病人可能有的不良情绪：
1) Deep anxiety
2) Deferred hope
3) Disappointment
4) Depression
她是这样阐述不良情绪是怎样一步步作用于人体使人患上癌症的（供参考）：
It is an accepted scientific fact that stress is responsible for over 80% of all diseases. The effect of emotional and psychological stress is a complex dance involving hormones, various parts of your brain, and your Immune System. Here is an oversimplified of the step by step process that leads to disease.
1 About 18 months to 2 years before your diagnosis, there may have been a life-changing or traumatic event that triggered intense psychological and emotional stress.
2 This led to feelings of despair, hopeless, and maybe even “giving up”
3 The emotional centre of your brain, the limbic system, records and senses the emotional stress.
4 The limbic system is connected to hypothalamus and communicates the stress response through various neurochemicals and nerve pathways.
5 This reaction to stress causes the hypothalamus to suppress the Immune System which allows for more growth of cancer cells.
6 The hypothalamus also is connected to the pituitary gland (脑垂体) in the brain, which is the master gland and regulator of our hormones.
7 The hypothalamus communicates stress to the pituitary gland, which causes the pituitary to alter health hormones function. An imbalance on our hormones can create an increase in the growth and production of abnormal cells.
8 Since the Immune System has been suppressed by the hypothalamus, the condition for cancer to multiply is set.
书中有大量研究出处。要想进一步深入了解，建议去读此书。
