Suppression of Sleep for Mating

See allHide authors and affiliations

Science  28 Sep 2012:
Vol. 337, Issue 6102, pp. 1610-1611
DOI: 10.1126/science.1228466

You are currently viewing the summary.

View Full Text

Log in to view the full text

Log in through your institution

Log in through your institution


Sleep has been viewed as a maladaptive behavior because it is incompatible with activity required to acquire food, defend against predation, and mate. Yet it appears to be nearly (1) universal among birds and mammals, leading to the assumption that sleep serves an unknown but vital physiological function. However, no function that can explain the huge variation in sleep times within and between species has yet been firmly identified, although many candidates, including reversal of oxidative stress, memory consolidation (2), extension of life span, and removal of various neurotoxins, have been proposed. On page 1654 of this issue, Lesku et al. (3) show that in one species of bird, those that sleep the least gain an advantage—they produce the most offspring.