The scientific evidence is clear–not enough sleep contributes to compromised brain function, mood disorders (especially depression), immune system dysfunction and poor overall health. And now the National Diet and Nutrition Survey in the UK has published more evidence that lack of sleep leads to obesity and metabolic syndrome, epidemic in our society.
So how much sleep do we need? At least a third of Americans are sleep deprived. Current research indicates adults need 7-9 hours of sleep in a 24 hour period. Children 6-12 years old need 9-12 hours and teenagers up to 18 need 8-10 hours in a 24 hour period. And you can’t make up for lost sleep on the weekends!
Our medAge Team puts great emphasis on the importance of sleep. We have tools to help you get the hours you need and you’ll be amazed at how great you feel and function.
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To Your Optimal Health! Dr Laura
ARTICLE: Longer sleep is associated with lower BMI and favorable metabolic profiles in UK adults: Findings from the National Diet and Nutrition Survey
Gregory D. M. Potter , Janet E. Cade, Laura J. Hardie
Published: July 27, 2017 Click here for the entire article
Ever more evidence associates short sleep with increased risk of metabolic diseases such as obesity, which may be related to a predisposition to non-homeostatic eating. Few studies have concurrently determined associations between sleep duration and objective measures of metabolic health as well as sleep duration and diet, however. We therefore analyzed associations between sleep duration, diet and metabolic health markers in UK adults, assessing associations between sleep duration and 1) adiposity, 2) selected metabolic health markers and 3) diet, using National Diet and Nutrition Survey data. Adults (n = 1,615, age 19–65 years, 57.1% female) completed questions about sleep duration and 3 to 4 days of food diaries. Blood pressure and waist circumference were recorded. Fasting blood lipids, glucose, glycated haemoglobin (HbA1c), thyroid hormones, and high-sensitivity C-reactive protein (CRP) were measured in a subset of participants. We used regression analyses to explore associations between sleep duration and outcomes. After adjustment for age, ethnicity, sex, smoking, and socioeconomic status, sleep duration was negatively associated with body mass index (-0.46 kg/m2 per hour, 95% CI -0.69 to -0.24 kg/m2, p < 0.001) and waist circumference (-0.9 cm per hour, 95% CI -1.5 to -0.3cm, p = 0.004), and positively associated with high-density lipoprotein cholesterol (0.03 mmol/L per hour, 95% CI 0.00 to 0.05, p = 0.03). Sleep duration tended to be positively associated with free thyroxine levels and negatively associated with HbA1c and CRP (p = 0.09 to 0.10). Contrary to our hypothesis, sleep duration was not associated with any dietary measures (p ≥ 0.14). Together, our findings show that short-sleeping UK adults are more likely to have obesity, a disease with many comorbidities.