A very important aspect of sleep deprivation that the world is facing
today, and probably a contributor to that as well, is our own
unwillingness to sleep.
We know that sleep is important; we even
know that if we do not sleep adequately, then it will create a lot of
problems for us in future, but we are still in denial and we do not give
this very essential part of our lives its due importance.
What is it that is making us not sleep? There are so many people who
are burning the midnight lamp for various reasons, but to what avail?
Are deadlines so important that we should lose sleep over them?
What effects can such a hazardous lifestyle have on our health?
In this chapter, we are going to see what makes people lose sleep.
We learn, through the concept of Circadian Rhythms, that our body is
made to behave in a particular way. The mechanism of our body
ordains that it should sleep, and the amount of sleep it gets should be
adequate.
But I Am Not Tired… I Won’t Sleep!
We all know if we are “morning” people or “evening” people. Many
people can jump out of bed easily in the morning, often without the
need for an alarm clock. At 9 pm in the evening they are ready to
sleep, their ability to focus and think clearly severely diminished.
Yet they may be married to someone who finds it extremely difficult to
get out of bed in the mornings, but at 9 pm at night they are awake
and produce their best quality work.
The difference between this pair is their biological clock that affects
what are called the Circadian Rhythms.
The hormone melatonin,which is produced in the brain in response to darkness, increases at night and is decreased during the day. Melatonin makes you feel
drowsy and reduces your body temperature.
Blood levels of the hormone are highest around midnight and levels gradually reduce in
the second half of the night.
Every individual has his or her own minor variation to this hormonal
response. This variation is the reason why some people feel sleepy
earlier than others. Age is also a contributing factor to our sleep
needs.