What to do when you get a cancer diagnosis

Every year, roughly 12 million people get news that they never imagined they would hear: “You have cancer.”

Without a doubt, this diagnosis is shocking, upsetting, and terrifying. As a cancer survivor myself, having had two different primary cancers, I can tell you that I certainly can relate to the whirlwind of emotions that comes from such life-altering news.

However, the purpose of my message today is to tell you this: Once you get over the initial shock, how you conduct yourself next can make a world of difference in how well you respond to treatment and recover.

System 1/System 2

We have two systems of thinking, System 1 and System 2.

System 1 thinking originates in the lower (reptilian) and mid (limbic system) brain. It is responsible for unconscious emotions and reactions that center on survival instincts.

System 2 resides in the outer regions of the front brain (neocortex and particularly the frontal cortex). In stark contrast to System 1, System 2 thinking is much more developed, deliberate, and uniquely human.

The capacity to use System 2 to make conscious choices gives us the ability to move beyond our fear-based survival instincts and to carry out higher-level cognitive functions, to have distinct unique personalities, to make complex decisions, and to dream and hope.

The Fear Response

What does this have to do with cancer? Well, when you first get diagnosed with cancer (or any disease, really), you have two ways you can react.

It’s perfectly natural to initially react in a very System 1 way. Being given a cancer diagnosis can be very isolating because no matter how much you are loved, you still have to go through much of this journey alone. Facing the possibility that this disease could take your life can make you feel very lonely. So, it’s very important to give yourself grace to feel this way.

However, it’s important not to linger too long in this constant state of System 1 fear and anxiety. If you do, there is a wide range of consequences that lead to the deterioration of both your physical and mental health and weaken you, giving your cancer a better chance of winning. And this is the last thing you want to do if you want to be a cancer survivor.

You see, when you’re stressed, your body releases cortisol (often called the “stress hormone”) and other stress-related messengers. Small bursts of cortisol in stressful situations help to initiate the body’s System 1 fight-or-flight response. This is incredibly helpful if you need to escape a fire or run away from a dangerous situation.

But when stress is chronic, it causes cortisol to pump through your body nonstop. Chronically elevated cortisol raises the risk of systemic inflammation, which increases the severity of cancer. So higher stress makes it harder to fight cancer and makes metastasis more likely.1

The Mindful Response

The second way you can react puts your System 2 conscious mind in control. With a System 2 mindset, you choose to live courageously.

This does not mean you can’t feel fear, anxiety, or uncertainty. These reactions are absolutely normal. Rather, you acknowledge these fears and then allow your conscious mind to monitor them so they don’t take over. This type of mindfulness is difficult at first, but the more you do it, the more natural it becomes.

You may be asking yourself, “What specifically does this mean?”

Allow yourself to indulge in a System 1 reaction, but limit the amount of time that you give into rage and despair. Make an appointment with yourself to indulge in bad feelings, but afterwards, make an appointment with yourself to apply your System 2 skills to your problems.

With this type of mindfulness, you are able take conscious control of your thoughts and emotions, and you find the capacity to connect with God in a very powerful and meaningful way. Yes, you still have some fear and anxiety because, after all, you are only human. However, you do not allow yourself to live in them and you are constantly reminded and encouraged to “fear not.”

If you have cancer,  it is obvious that it is hardto consciously take control of your emotions …to let go of the what-ifs…to choose to live life without constant fear… But if you want to live a beautiful life today and for the rest of your life, you must.


  1. Moreno-Smith M, et al. Future Oncol. 2010 Dec;6(12):1863-81.

About Author

Brian Matthews

Brian Matthews is the President of Gene Smart and the leader of our Gene Smart team. His mission is to provide supplements to help you control your inflammation, your weight, and your life, based on the latest scientific information.

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