B-Toplum

"There are lots of different kinds of circadian rythms. Most people are B-persons, which means that their circadian rythm has a cycle that runs through 25 hours.

B-persons finds it easy to stay awake in the evening; but has difficulties waking up in the morning – the time where the A-persons are most active.
Every human has a so called inner clock, which is regulated by the earlier mentioned clock-genes.

A B-person has a strive for staying awake untill late at night – for instance, to go to bed at 1 or 2 a.m. and then sleep a little longer in the morning.
If a B-person and an A-person goes to sleep at the same time, and rise at the same time early, the morning wil be experienced differently as the body-temperature of the A-person is higher than that of the B-person at this point.

The B-person therefore has a very good reason for feeling drowsy, as it is still ”night” (”time for sleep”) for the B-person."

Daha ayrintili bilgi icin:

http://b-samfundet.dk/node/87