5 Signs Your “Fight or Flight” Response Is Making You Gain Weight

5 Signs Your “Fight or Flight” Response Is Making You Gain Weight

weight gain - adrenal fatigueHealth

“Every day you hear about people struggling with arthritis, depression, insomnia, allergies, and indigestion, but the biggest problem that afflicts more people, are fatigue and weight gain. Those two ailments by far outdistance any other (health) problem.” – Dr. Len Lopez

The relationship between stress, adrenal fatigue, and weight gain is systematic. Picture a malfunctioning pinball machine that rapidly shoots the silvery ball between three bumpers without dropping the ball back into the slot. Tilting the table isn’t working. The only way to fix the machine is the diagnose the issue and break out your toolkit.

That (poorly analogized) pinball machine represents your metabolism. When playing pinball, it’s important to follow the ball once it hits the bumper – this isn’t always easy to do, as the ball is traveling quite fast. The same applies to the rapid, systematic relationship between stress, adrenal glands, and weight gain.


In this article, we’ll explain this relationship and the importance of adrenal glands in maintaining a healthy weight. We’ll also list a few signs that a faulty adrenal gland may be the culprit behind some added pounds.

The Stress Response

Let’s go back 40,000-plus years. Our distant Neanderthal ancestors were forced to contend with some serious hardships. Having lived during the ice age, they had to deal with some pretty harsh weather. Dastardly climate conditions, combined with a run-in or twelve with some less-than-friendly creatures, limited the average lifespan of the average Neanderthal to about 30 years old. It is proposed that we developed our fight-or-flight response during this period (more about this below.)

Our body will react to any physical or mental stress; whether we’re sprinting away from immediate danger or straining to finish our project on time. Our brain perceives this stress and initiates a chain reaction inside of the body. This chain reaction uses a pathway called the HPA axisHypothalamus (within the brain), the Pituitary gland (also in the brain), and Adrenal glands.

Adrenal glands are small, triangular-shaped glands that sit atop each kidney. Our adrenal glands are responsible for (among other things) the production of cortisol – a stress hormone. When cortisol is released, this signals the brain to go into a fight-or-flight response.

Unlike our Neanderthal cousins, we’re not prepping to tussle with some savage beast; yet, our brains have retained this evolutionary stress response – and many of the same physiological mechanisms that occur upon its activation. “As our bodies and minds have adapted and evolved to the changing times, the threats have become less obvious – and sometimes they aren’t even real. Today, our body can react to even perceived or imagined threats,” states Dr. John M. Grohol.

Stress and Adrenal Fatigue

When we’re under constant stress, our adrenal glands kick into overdrive in an attempt to produce enough cortisol to deal with the “threats.” While our body is well-equipped to handle short-term stressors, long-term exposure suppresses the body’s normal stress response – including those of the adrenal glands. More specifically, an important “shut down” mechanism of the adrenal glands (initiated by the brain) is impaired. This can result in a condition known as Adrenal Fatigue.

Here are some common signs and symptoms of Adrenal Fatigue:

– Mild depression or anxiety

Lethargy and lack of energy

– More effort needed to complete tasks

Less ability to handle stress

– Dry or thinning skin

New or worsening allergy symptoms

– Sugar or salt cravings


Cognition problems (such as “brain fog”)

– Decreased libido

Adrenal Fatigue and Weight Gain

(Please do not overlook the importance of the abovementioned information – as we consider it essential to understanding the mechanisms of stress-related weight gain.)

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