Lifestyle mediators of associations among siestas, obesity, and metabolic health
Authors' conclusion
Siesta duration is relevant in obesity/MetS. Timing of nighttime sleep and eating, energy intake at lunch, cigarette smoking, and siesta location mediated this association.
Study context
- Population
- Adults from a Mediterranean population (ONTIME study) in which siestas are culturally embedded
- Participants
- 3,275 adults
- Exposure
- Long siestas and short siestas vs no siestas
- Outcome
- Association of siestas (by duration) with obesity and MetS, and mediation by siesta traits and lifestyle factors
Main finding
As reported in the abstract
Higher prevalence of metabolic syndrome (MetS)
41%
P = 0.015
Long siesta
Lower probability of elevated SBP
21%
P = 0.044
Short siesta
- Siesta use: participants usually taking siestas
- 35%
- Long siestas
- 16%
Observational data: associations, not effects.
Further findings
Mediators of association of long siestas with higher BMI
- Higher number of cigarettes per day (percentage of association mediated; p < 0.05)
- 12%
- Delayed nighttime sleep (p < 0.05)
- 8%
- Delayed eating schedules (p < 0.05)
- 4%
- Higher energy intake at lunch (p < 0.05)
- 5%
Napping in bed (vs sofa/armchair) as mediator of long siestas and higher SBP
- Trend to mediate (p = 0.055)
- 6%
Original publication
Lifestyle mediators of associations among siestas, obesity, and metabolic health. Obesity (Silver Spring). Published 26 April 2023. doi:10.
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