The average social jetlag was nearly 2 hours. Some 40% had a short sleep duration on workdays (6 hours or less). One in five (20%) were classified as high cardiovascular risk. Just over half (51%) were smokers, 49% had high cholesterol, and 10% had hypertension. The average age of participants was 33 years and 56% were men. The researchers then investigated the association between social jetlag and high cardiovascular risk. In this study, a relative risk of 3 or more was considered “high cardiovascular risk”. Relative risk ranges from 1 (non-smoker with healthy blood pressure and cholesterol) to 12 (smoker with very high blood pressure and cholesterol). The researchers used the European relative risk SCORE chart which incorporates smoking, blood pressure and cholesterol to calculate relative cardiovascular risk. Participants were divided into three groups according to hours of social jetlag: 2 hours or less, 2–4 hours, 4 hours or more. the mismatch between an individual’s biological clock and working hours) – referred to as social jetlag. It was also used to quantify the amount of circadian misalignment (i.e. The Munich ChronoType Questionnaire was used to assess sleep duration, and to estimate each individual’s internal biological clock (also called chronotype). Participants completed a questionnaire on sociodemographic factors (age, sex, education), occupational factors (work schedule, seniority), and lifestyle factors and had their blood pressure and cholesterol measured. Staff always worked either early morning (6am-3pm), late evening (3pm-midnight), or night (9pm-6am) shifts. SHIFT WORK CLOCK MANUALThe study included 301 blue collar workers, all performing manual picking activity in the distribution warehouses of a retail company in Portugal. to fall asleep at 10pm) and what your social obligations impose on you (e.g. Circadian misalignment occurs when there is a mismatch between what your body wants (e.g. Gamboa Madeira explained: “We all have an internal biological clock which ranges from morning types (larks), who feel alert and productive in the early morning and sleepy in the evening, to late types (owls), for whom the opposite is true – with most of the population falling in between. work schedules) and the individual “biological clock”.ĭr. This study focused on the role of circadian misalignment, which is the difference between the “social clock” (e.g. 3 A number of explanations have been proposed, including sleep disruption and unhealthy behaviours. Sara Gamboa Madeira of the University of Lisbon, Portugal.Īt least 20% of European employees work atypical hours or shifts, 2 and growing scientific evidence associates these with deleterious cardiovascular outcomes. “Our study found that for each hour the work schedule was out of sync with an employee’s body clock, the risk of heart disease got worse,” said study author Dr. Sophia Antipolis – 16 April 2021 : Working hours that deviate from an individual’s natural body clock are associated with greater cardiovascular risk, according to research presented at ESC Preventive Cardiology 2021, an online scientific congress of the European Society of Cardiology (ESC).
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |