There is more and more evidence of how the alteration of sleep and waking cycles is at the root of the development of certain diseases, but this correlation does not seem to be taken seriously yet. The modern human being stays awake at night, sleeps very little and makes intercontinental journeys - an occasion in which the diurnal and nocturnal rhythms are completely jeopardized: all this is not without consequences on health.
How can changing circadian cycles make us sick? A recent study by the University of Southern California tells us.
When the natural rhythms are altered they can contribute to the development of certain diseases. This would also explain why some diseases are much more frequent in people doing night work or who often make intercontinental journeys.
The circadian rhythm is a kind of biological clock driven by the internal clocks of the cells; allows organisms to adapt to the cycle by day and by night. The interruption or alteration of this cycle can lead to some health conditions that doctors are studying to get to create targeted therapies.
"There are more and more incompatibilities between modern lifestyles and our internal biological clock, and when clashing it can happen that diseases such as obesity, cancer and diabetes develop," said Steve Kay of the University of California.
"Human beings have not yet evolved to carry on night shifts, always-on lights or prolonged waking hours, without affecting health.The challenges of modern life to our circadian system pose a long-term threat to our health" , added the professor.