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What does stress do to the human body

How many saber-toothed tigers tried to maul you to death today? Hopefully, the stressors in your life don’t involve an apex predator chasing you through the bush, as was the case for our cavemen ancestors. Still, stress affects us the same way it did them. We are wired for stress physiologically much the same way we were millennia ago, with our primordial fight or flight response well alive within us to keep us alert and safe.

Though not all stress is bad, we need a break from bad stressors, otherwise our health may begin to deteriorate.

Modern humans battle bad stressors that might not seem like a fight or flight scenario — staying in an unhealthy or challenging relationship with a partner; financial hardships; job dissatisfaction; drug and alcohol abuse; nagging in-laws — all this distress may cause the body to:

• Elevate blood pressure
• Increase heart rate
• Slow down digestion and metabolism
• Flood the bloodstream with chemicals like adrenaline and cortisol
• Tense up muscles

Have a white-knuckle commute on the freeway to work every morning? Welcome to this modern life’s version of the caveman being chased by the saber-tooth tiger. Though you might not have to flee your car and run, the same chemical cocktails are coursing through your body as the caveman’s.

Cortisol is one of those chemicals. Like adrenaline, it helps us deal with stress, but too much of it can be harmful to the body. Research has linked it to body fat storage around the abdomen. In turn, piling on the pounds around the belly can lead to heart disease.

Excessive cortisol flooding the bloodstream can lead to adrenal exhaustion. Some doctors believe that adrenal exhaustion (think: someone who is constantly tired) is the main culprit behind every chronic disease. Dr. Lawrence Wilson isn’t alone in thinking that the mainstream medical profession often fails to recognize adrenal burnout as a real health concern.

WebMD reports that 75 to 90 percent of all doctor visits are stress-related, but in its assessment of stress on the body, nowhere does it mention adrenal fatigue due to excess cortisol, which is sometimes referred to as “the stress hormone.”

Failing to cope with bad stress, and thus severely fatiguing the adrenal glands (which rest over the kidneys), has a domino effect on the body’s many symptoms and functions, including:

Hormonal (hormonal pathways can be disrupted)

Musculoskeletal (you won’t burn fat as efficiently and gain muscle)

Immune (adrenal fatigue from bad stress wreaks havoc on the immune system)

Digestive (bad stress slows digestion, chronic digestion problems may arise)

Cardiovascular (adrenal fatigue can lead to heart palpitations and other problems)

Obesity:

People who suffer long-term stress may also be more prone to obesity, according to a new study from University College London. The research, which involved examining hair samples for levels of cortisol and was published in the journal Obesity, showed that exposure to higher levels of cortisol over several months is associated with being more heavily, and more persistently, overweight.

While stress and weight long have been thought to go hand-in-hand (think stress eating and comfort foods), this study confirms the link by examining long-term cortisol levels in more than 2,500 men and women over a four-year period.

“People who had higher hair cortisol levels also tended to have larger waist measurements, which is important because carrying excess fat around the abdomen is a risk factor for heart disease, diabetes, and premature death,” Dr Sarah Jackson (UCL Epidemiology and Public Health) who led the research, said in a press release. “Hair cortisol is a relatively new measure which offers a suitable and easily obtainable method for assessing chronically high levels of cortisol concentrations in weight research and may therefore aid in further advancing understanding in this area.”

Weakened immune system:

As if mounting bills and a tenuous marriage weren’t enough stress to make your blood vessels dilate, your pupils enlarge, your breathing rapidly increase and your sweat glands kick into overdrive, perhaps reading that eating an unhealthy diet also plays a major role in contributing to adrenal fatigue.

How? Eating the wrong foods over many years can break down the mucosal barrier in your gut. Think of the mucosal barrier as the body’s second skin as well as the body’s first line of defense against pathogens, or unwanted nasty critters invading your gut.

Your immune system lies mostly in your gut, so if over the years you continue eating poorly, the integrity of the mucosal barrier system becomes severely compromised. In the long run, digestion is compromised. With most of your immune system residing in your gut, your immune system will weaken.

Concerned about what stress has done to your body? Seek a medical professional or alternative health practitioner who understands adrenal fatigue and knows how to restore hormonal pathways. A nutritional approach to battling stress should also be applied.

credit: Judd Handler

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