Bursztyn and coworkers1 have demonstrated that the siesta may be an independent predictor of mortality in the elderly. Although the siesta has been reported to have some protective effect on cardiovascular events,2 the authors' report and another study3 suggested that the siesta may have untoward rather than beneficial effects on health status in the elderly.
Teramoto S, Ouchi Y. Is the Siesta Associated With Sleep Apnea Syndrome in the Elderly?. Arch Intern Med. 2000;160(5):710-711. doi: