SLEEP – T2 DIABETES, METABOLIC DISEASES, SARCOPENIA – AGING


2 RESEARCH ARTICLES


EVENING CHRONOTYPE ASSOCIATED WITH METABOLIC DISORDERS AND BODY COMPOSITION IN MIDDLE-AGED ADULTS – 2015


Yu JH1, Kim NH et al
OBJECTIVE
– Chronotype is a trait determining individual circadian preference in behavioral and biological rhythm relative to external light-dark cycle
DESIGN AND PARTICIPANTS
– A total of 1620 participants aged 47-59 years were recruited from the Korean Genome and Epidemiology Study
RESULTS
(1) Chronotype was classified as morning in 29.6% of subjects, evening in 5.9%, neither morning nor evening in 64.5%.
(2) Evening type, when compared with morning type, was significantly associated with diabetes, metabolic syndrome and sarcopenia
(3) In men, evening type was associated with diabetes and sarcopenia; only metabolic syndrome was associated with evening type in women
CONCLUSIONS
(1) At the population level, evening chronotype was independently associated with diabetes, metabolic syndrome, and sarcopenia
(2) These results support the importance of circadian rhythms in metabolic regulation


THE METABOLIC BURDEN OF SLEEP LOSS – 2014


Sebastian M Schmid; Manfred Hallschmid; Prof Bernd Schulte
SUMMARY
(1) Studies show association between short sleep duration, sleep disturbances, and circadian rhythm of sleep with adverse metabolic traits, in particular obesity and type 2 diabetes
(2) Outcomes: increased appetite, enhanced sensitivity to food stimuli, and, ultimately, a surplus in energy intake


 

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