source http://www.huffingtonpost.com/vivian-diller-phd/the-science-behind-stress_b_1261390.html?ref=healthy-living&ir=Healthy%20Living

Stress takes a toll on our bodies. The anxiety, colds, achy muscles and such are just the beginning. When we are stressed out Stress and Aging for long periods of time, it actually ages us right down to our core. That is why dealing with stress and giving our bodies what they need to handle the onslaught is so very important.

Our genes may tell our body what we will look like etc. and they don’t change. It is our genomes that changes and allow the RNA to make mistakes. When we are stressed the ends of our genes gets worn out and begin to shorten. This causes many of the sickness problems so prevalent in our culture today.

Here is what we know. Acute anxiety is our natural response to a real or perceived threat — what we call the fight/flight reaction. It involves a two-way communication between our brain and body, resulting in activation of our cardiovascular, immune and other biological systems. It’s our survival instinct at work.

But, when anxiety is prolonged — that is, when our flight/flight reaction goes on alert and remains there — our physiological systems elevate for longer periods of time and ultimately become maladaptive. The result? It wears our bodies down.

Research has shown us how this happens, pointing toward the impact that “stress chemicals” have when they are released into our bodies. They include adrenaline, norepinephrine and cortisol.

  • Adrenaline is known to accelerate heart rate, inhibit digestion, constrict blood vessels and decrease hearing and vision.
  • Norepinephrine also accelerates the heart and can affect a part of the brain that is responsible for attention or focus.
  • Cortisol production increases blood pressure and blood sugar levels, hardens arteries, increases fat storage and lowers growth hormone. Cortisol also appears to play a role in osteoporosis, muscle and collagen loss, and is believed to weaken the immune system.

In addition to the impact of stress chemicals on our bodies, there are other potential biological factors involved. Genetic studies have demonstrated connections between stress and deterioration on the cellular level as well. To simplify very complicated genetic research, there are three likely contributors to the aging process: oxidative stress, glycation and diminishing telomeres.

  • Oxidative stress is believed to damage our genes due to the production of oxidants (highly reactive substances caused by inflammation, infection, consumption of alcohol and cigarettes). In one study, scientists exposed worms to two substances that neutralized oxidants, resulting in an average increase in their lifespan by 44 percent. Researchers suspect, but have not yet proven, that severe oxidative stress causes cell death in humans and directly contributes to our aging process.
  • Glycation happens when glucose (sugar) binds to our DNA, proteins and lipids, rendering them less effective. Studies show that as we get older, glycation causes a decrease in circulation, stiffening of the skin and increased malfunction of body tissue. Scientists are actively studying how glycation may explain why restricting calorie intake in laboratory animals extends their lifespan.
  • Diminishing telomeres is a natural process that occurs every time a cell divides and reproduces. Telomeres are the regions found at the ends of our chromosomes. As we age, they naturally decrease. Researchers are now examining how anxiety and stress may expedite this process, exploring its relationship to an increase in the death of cells, muscle weakening, loss of eyesight and hearing, wrinkles and graying.

Which is all to say that aging is a product of metabolic processes that are naturally occurring and may be appreciably influenced by our environment. Our genetic makeup is most directly responsible for reaching our current life expectancy of about 78. While continuous stress may lead to chemical, cellular and molecular changes, causing irreversible alterations within our bodies, it is hard to know how much — and exactly how — they promote the visible ones that we associate with aging.

But biology aside, there are also daily lifestyle choices that may contribute to wrinkles and gray hair. People who endure continuous stress tend to eat poorly, exercise less, smoke cigarettes and sleep irregularly — all of which can affect the aging process.

If you include the tendency for anxiety to lead to frowning, tensing and tightening facial and neck muscles, we have a recipe for a premature aging appearance. Clearly, taking care of ourselves and avoiding stress prolongs a healthier aging experience. Likewise, neglecting our bodies — and psyches — over long periods of time may propel us toward premature aging and age-related disabilities.

We can only imagine how fast and furiously the stress hormones of Barack Obama and Hillary Clinton are flowing. Surely, their natural oxidation, glycation and telomere shortening are on overdrive — leading their faces and bodies toward old age faster than your average everyday person. But, for the rest of us? We can try our best to keep our stress levels at a minimum, so we can prolong the health and vitality of our bodies well into our 80s and 90s.

Sure, we all age. And, in all likelihood, how we age is primarily determined by our DNA and the DNA of our parents and grandparents. But, we have learned a lot in recent years about the interplay between stress, biochemistry and genetics. If we can manage to keep anxiety and stress from accelerating our natural physiological changes — internally and externally — we are likely to look and feel better for longer periods of time.

Adding the right supplements to our diets can help our bodies deal with and reverse the damage being done. Look for company with a long track record of proof and published clinical studies. Shaklee products really do fit the bill. Clinical studies and personal testimonies prove Shaklee products work where and when they are supposed to. Check out these products to help you give your body what it needs to age gracefully and healthy.

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