circadian

• "However, in an environment where there is much artificial light at night-such as Manhattan or Las Vegas-there is much more opportunity for exposure of the retina to photons that might disrupt circadian rhythm," he says. —  YubaNet.com
• The 24-hour day / night cycle, known as the circadian clock, affects physiologic processes in almost all organisms. —  YubaNet.com
• "Studies show that the circadian cycle controls from ten to fifteen percent of our genes," he explains. —  YubaNet.com
• Difficulties with adjusting the circadian clock can lead to a number of sleep disorders, including shift-work sleep disorder, which affects people who rotate shifts or work at night, and delayed sleep-phase syndrome, in which people tend to fall asleep very late at night and have difficulty waking up in time for work, school, or social engagements. —  YubaNet.com
• Alteration of the circadian clock can branch into other effects besides sleep disorders. —  YubaNet.com

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