This image is not available for purchase in your country.

Conceptual image depicting sleep and wakefulness

Conceptual image depicting sleep and wakefulness

P895/0030

Rights Managed

This image is not available for purchase in your country.

Please contact your Account Manager if you have any query.

Credit

DAVID GIFFORD / SCIENCE PHOTO LIBRARY DAVID GIFFORD / SCIENCE PHOTO LIBRARY

Caption

Biological clock. Conceptual computer image depicting human biorhythms, showing the face of a woman during sleep and wakefulness. Processes such as wakefulness and tiredness are based on a daily or circadian (24 hour) cycle regulated by hormones such as melatonin and cortisol.

Release details

Model release not available. Property release not required.

 {{ i.shot_duration ? i.shot_duration + ' ' : '' }}{{ i.shot_uhd ? '4K ' : i.hires ? 'HD ' : '' }}{{ i.spl_number }} R{{ i.license }}

  • Add to board
  • Similar {{ mediaType(i) }}