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| Description: For at least three days, except when you are sleeping, try keeping an hourly record of your mental alertness level, using this five-point scale: 1 = extremely drowsy or mentally lethargic; 2 = somewhat drowsy or mentally lethargic; 3 = moderately alert; 4 = alert and efficient; and 5 = extremely alert and efficient. Does your alertness level appear to follow a circadian rhythm, reaching a high point and a low point once every 24 hours? Or does it follow a shorter rhythm, rising and falling several times during the day? Are your cycles the same on weekends as during the week? Most important, how well does your schedule mesh with your natural fluctuations in alertness? Picture Stats: Views: 183 Filesize: 310.49kB Height: 314 Width: 457 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=39222 |