HOW LACK OF SLEEP EFFECTS WEIGHT GAIN

We know from studies that lack of sleep is causally connected to many physical problems. One of the common symptoms of obstructive sleep apnea is being overweight. So then, how do sleep disorders contribute to weight gain?
1-30-14 OBESE
 Ghrelin: the Hunger Hormone
Lack of sleep increases ghrelin, and decreases leptin, both effects producing increased hunger and obesity. Leptin is the “anti-hunger” hormone. When the circadian rhythm is interrupted by exposure to light at night, gherlin is released.
Ghrelin is known as the “hunger hormone” It is produced in the gastrointestinal tract  and functions as a neurotransmitter. The receptor for ghrelin is found on the same cells in the brain as the receptor for leptin, the satiety hormone that has opposite effects from ghrelin.
 
An inverse relationship between the hours of sleep and blood concentrations of ghrelin exists; as the hours of sleep increase, ghrelin levels trend lower and obesity is less likely.  Short sleep duration is associated with high levels of ghrelin and obesity.
When the stomach is empty, ghrelin is secreted. When we eat something the stomach is stretched and ghrelin secretion stops. Ghrelin acts to increase hunger and to increase gastric acid secretion and gastrointestinal motility to prepare the body for food intake.
What else does Ghrelin effect?
Beyond regulating hunger, ghrelin also plays a significant role in other systemic functions. Ghrelin influences body composition, it stimulates the release of growth hormone and regulaties the distribution and rate of use of energy.
Conclusion
This is just another convincing reason to get adequate healthy sleep. Light is the circadian rhythm disrupter. Avoid light disturbances during sleep: have no lights in the bed room, pull the shades down to block any outside light, wear an eye mask.
counting-sheep. a
Resources
WebMD
Wikipedia
Zarouna SWozniak G, Papachristou
  • Stalo Zarouna, Psychology Department, University of Cyprus, Nicosia 1678, Cyprus.
  • Department of Cell Biology, Physiology and Immunology, University of Cordoba, Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), and CIBER Fisiopatología de la Obesidad y Nutrición, 14004 Córdoba, Spain.

BRING YOUR VALENTINE TO CHARLOTTE FOR A SPECIAL WEEKEND

2-6-14  valentines-day-candies1
Learn Dental Sleep Medicine in Charlotte, NC on the Valentine’s Weekend- Feb. 11th and 12th.
Bring your Valentine and enjoy the city after a most profitable seminar.
2-6-14 CHARLOTTE, NC

Dr. George Jones will explain the WHY and the HOW of the Obstructive Sleep Apnea connections:

  • WHY is High Blood Pressure a symptom of SA?
  • WHY is Acid Reflux (GERD) a symptom of SA?
  • WHY is Diabetes a symptom of SA?

Dr. Jones will explain these relationships and their physiology.

Learn the risk factors and HOW they contribute to OSA:

  • Excess weight. Fat deposits around your upper airway may obstruct your breathing. However, not everyone who has sleep apnea is overweight. Thin people develop OSA, too.
  • Neck circumference. People with a thicker neck may have a narrower airway.
  • A narrowed airway. You may have inherited a naturally narrow throat. Or, your tonsils or adenoids may become enlarged, which can block your airway. An enlarged or inflamed uvula will block the airway.
  • Being male. Men are twice as likely to have sleep apnea. However, women increase their risk if they’re overweight, and their risk also appears to rise after menopause.
  • Age. Sleep apnea occurs significantly more often in adults over 60.
  • Family history. If you have family members with sleep apnea, you may be at increased risk.
  • Race. In people under 35 years old, blacks are more likely to have obstructive sleep apnea.
  • Use of alcohol, sedatives or tranquilizers. These substances relax the muscles in your throat.
  • Smoking. Smokers are three times more likely to have obstructive sleep apnea than are people who’ve never smoked. Smoking may increase the amount of inflammation and fluid retention in the upper airway. This risk likely drops after you quit smoking.
  • Nasal congestion. If you have difficulty breathing through your nose — whether it’s from an anatomical problem or allergies — you’re more likely to develop obstructive sleep apnea.
1-30-14 GIRL W TAPES ON NECK
Earn 16 CE credits and become The Sleep Dentist.
Brand yourself as a Doctor who understands and discovers sleep problems.

Read more about this inside Sleep Magazine: www.TheSleepMagazine.com 

1-21-13 LOGO DENTAL PROS SHARINGSee the Two day course outline and register here:
http://sleepgroupsolutions.com/2.0/modules/piCal/index.php?action=View&event_id=0000003035

Dr. Jones will continue to mentor you after the seminar to give you the confidence to be a Sleep Medicine Doctor.

Dr. George Jones is a native of Wheeling, WV and earned his BS in Chemistry from Wheeling Jesuit University. He received his Dental Degree from the University Of Florida College Of Dentistry, and relocated to coastal North Carolina in 2003. Over the years, Dr. Jones has served as a consultant and evaluator for several dental manufacturers and maintains a private practice in Sunset Beach, NC. .

TWO SIGNIFICANT INDICATORS OF SLEEP APNEA- BMI and NECK CIRCUMFERENCE. Calculate them here:

The Body Mass Index (BMI) appraisal is one of the most widely used tools to measure healthy body weight. This ratio of height to weight will help assess whether you are underweight, normal weight or overweight.

 The higher the BMI, the greater the risk of some diseases, including:
Sleep Apnea, Stroke, High blood pressure, Coronary artery disease, Osteoarthritis, Some cancers,  Diabetes type 2
1-30-14 OBESE
Sleep Apnea awareness is “contagious”. As more and more people learn about SA, doctors are driven to get training and certification to be able to discover and treat this disease. Less than 1 % of doctors are trained in Sleep Medicine to help the 40 million people afflicted with SA.
1-21-13 LOGO DENTAL PROS SHARING
 Here is a BMI calculator, from the Mayo Clinic, that you can use to determine your (or a child’s) BMI. http://www.mayoclinic.com/health/bmi-calculator/NU00597
Take the assessment, then rate yourself (below).
Category BMI range – kg/m2 BMI Prime
Very severely underweight less than 15 less than 0.60
Severely underweight from 15.0 to 16.0 from 0.60 to 0.64
Underweight from 16.0 to 18.5 from 0.64 to 0.74
Normal (healthy weight) from 18.5 to 25 from 0.74 to 1.0
Overweight from 25 to 30 from 1.0 to 1.2
Obese Class I (Moderately obese) from 30 to 35 from 1.2 to 1.4
Obese Class II (Severely obese) from 35 to 40 from 1.4 to 1.6
Obese Class III (Very severely obese) over 40 over 1.6

Each unit increase in BMI is associated with a 14% increased risk of developing sleep apnea, and a 10% weight gain increases the odds of developing moderate or severe obstructive sleep apnea by six times. Compared to normal-weight adults, those who are obese have a sevenfold increased risk of developing obstructive sleep apnea.
NECK CIRCUMFERENCE
 Taking neck measurements is inexpensive, easy to obtain and could indicate health problems like sleep apnea, says one study.
BMI isn’t the sole marker of obesity that’s important. Men with a neck circumference above 16.5 inches (43 centimeters) and women with a neck circumference above 15 inches (38 centimeters) also have a significantly increased risk of developing obstructive sleep apnea.  That is because a thick neck may narrow the airway.
1-30-14 neck-circumference.jp g
MEN- What size shirt do you wear?