The Dirty Dozen

Written by Dr. Steve Chaney on . Posted in Environment and Health, Issues

Environmental Toxins That Affect Brain Development

 Author: Dr. Stephen Chaney

 In a recent review, Drs. Grandjean and Landrigan (The Lancet Neurology, 13: 330-338, 2014) identified 12 toxic chemicals which are abundant in our environment and are developmental neurotoxins.

These are all chemicals that damage brain development. They can cause decreases in IQ and aggressive or hyperactive behavior in children – and that those changes may be permanent.

Let’s look at these developmental neurotoxins and where they are found.

The Dirty Dozen

In their review Grandjean & Landrigan identified 6 developmental neurotoxins that were known in 2006, and 6 more chemicals that have been confirmed to be developmental neurotoxins between 2006 and 2023.

Developmental Neurotoxins Known in 2006 and their sources:

  • Lead
    • Main Sources: paint, gasoline, solder and consumer products such as toys & jewelry
    • Current status: Lead has been banned in paint since 1978 and from gasoline since 1996. Millions of houses still contain lead paint. Other current sources are inexpensive toys and costume jewelry imported from China and other countries without tight regulations.
    • The EPA estimates that 1 million children in the US are affected by elevated lead levels.
  • Methylmercury
    • Main Sources: discharges into air & water from coal-burning power plants, mining, pulp & paper industries.
  • Polychorinated biphenyls (PCBs)
    • Main Sources: transformers and many commercial products
    • Current status: Banned in 1979, but continues to be a common environmental contaminant because this group of chemicals is very long-lived.
  • Arsenic:
    • Main Sources: extraction of metals from rock (smelting), algaecides, herbicides, pesticides and pressure-treated wood.
    • Current status: Pressure treated wood banned in 2003 for residential use. Still found in some playgrounds and older buildings.
  • Toluene:
    • Main Sources: gasoline. It is also a solvent for paints, paint thinners, spot removers, adhesives, antifreeze, & some consumer products like fingernail polish removers.
    • Current status: Common in consumer products. Read labels and make sure windows are open if you use.

Developmental Neurotoxins Identified Since 2006 and their sources:

  • Manganese
    • Main Sources: municipal wastewater discharge, emissions generated during alloy, steel & iron production, emissions from burning of fuel additives
  • Flouride
    • Main Sources: naturally elevated in groundwater in certain regions, added to municipal water supply, most bottled beverages and toothpaste.
    • The American Academy of Pediatrics has warned that children drinking fluoridated water, fluoridated beverages, using fluoridated toothpaste and receiving fluoride treatments for their teeth may be receiving excess fluoride.
  • Chlorpyrifos
    • Main Sources: insecticide
    • Current status: Banned for use in homes in 2001. Still one of the most widely used insecticides in agriculture.
  • DDT
    • Main Sources: insecticide
    • Current status: Banned for use in this country in 1972. DDT and its breakdown products still found in our water supply. DDT still in use in agriculture and insect control in some countries.
  • Trichloroethylene (TCE)
    • Main Sources: widely used in dry cleaning fabrics, the textile industry and metal degreasing
    • Current status: Found in groundwater due to discharge from factories and dry cleaners.
  • Polybrominated diphenyl ethers (PBDEs)
    • Main Sources: flame retardants – used in building materials, electronics, mattresses & household furniture, plastics, polyurethane foams & textiles.
    • Current status: Readily leached into the environment. Found in dust, water, food & human breast milk

These statements have not been evaluated by the Food and Drug Administration. This information is not intended to diagnose, treat, cure or prevent any disease.

 

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Shermer’s Neck Pain Relief

Posted January 16, 2018 by Dr. Steve Chaney

Shermer’s Neck Is An Ultra-Cyclist’s Nightmare

Author: Julie Donnelly, LMT – The Pain Relief Expert

Editor: Dr. Steve Chaney

shermer's neck pain ultracyclistShermer’s Neck is a condition where the muscles of the back of your neck become so tight that they lose the ability to hold your head up. It is a condition most frequently associated with ultracycling.

Do you love to cycle?  Perhaps you’re an ultracyclist and ride for many hours every week.  If you are, you may already know about Shermer’s Neck.

As you are well-aware, an ultracyclist leans forwardThis is called the “aerodynamic position.” When you do that, you are slicing through the wind, and you aren’t losing speed when the wind hits your chest. However, you need to hold your head up to see where you are going and maintain that position for several hours. That is what causes Shermer’s Neck.

Shermer’s Neck And The Non-Athlete

shermer's neck pain painterYou don’t have to be an ultracyclist to suffer from Shermer’s Neck. Do you do anything that has you look up for hours, such as being a house painter? Even something as simple as having your computer screen too high can force you to have your head tilted up for long periods of time while working.

If so, Shermer’s Neck can still affect you, and seriously impact your life. Fortunately, non-athletes don’t usually have as severe a problem as the ultracyclists.

Why Does Looking Up Cause Shermer’s Neck?

shermer's neck painYour posterior neck muscles primarily originate at the middle of your back, along your spine. They go up your back and neck, and insert into either your cervical spine, or the bottom of your skull. When these muscles contract, they pull your head back.  When the muscles of the posterior neck contract, if you are standing, you’ll be looking at the ceiling. If you’re a cyclist, your posterior neck muscles contract in order for you to look forward.

How To Treat The Muscles That Cause Shermer’s Neck

shermer's neck pain pinchThe primary muscles that cause Shermer’s Neck are:

To treat the muscles that cause a repetitive strain injury in your neck, tilt your head back and pinch the muscle that is right next to your spine.

shermer's neck pain reliefNext, press the three middle fingers of your opposite hand deeply into the muscle fibers, going from the base of your scalp to as far as you can reach down the center of your back, right alongside your spinal column.

While pressing deeply, slowly lower your chin toward your chest so you are stretching the muscle fibers.  Don’t let your hand slide on your neck or you will miss the stretch.

Do both self-treatments on both sides of your neck.

shermer's neck pain relief bookYou can find the full treatments for your entire neck and upper back by going to my book, Treat Yourself to Pain-Free Living . This book has treatments for your entire body, from your head to your feet.  YOU are your own Best Therapist!  Stop pain quickly and easily with self-treatments you can do anytime, anyplace.  Get relief from Shermer’s Neck pain by following the steps above.

Wishing you well,

Julie Donnelly

 

About The Author

julie donnellyJulie Donnelly is a Deep Muscle Massage Therapist with 20 years of experience specializing in the treatment of chronic joint pain and sports injuries. She has worked extensively with elite athletes and patients who have been unsuccessful at finding relief through the more conventional therapies.

She has been widely published, both on – and off – line, in magazines, newsletters, and newspapers around the country. She is also often chosen to speak at national conventions, medical schools, and health facilities nationwide.

These statements have not been evaluated by the Food and Drug Administration. This information is not intended to diagnose, treat, cure or prevent any disease.

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