A Sweeter Dream.
Monday mornings; universally hated by generation after
generation of sleepy-eyed schoolchildren, having to drag themselves out of
their warm beds in the early hours of the morning. The 6 O’clock wake-up call
is hell, usually made worse by adults and the media endlessly slating teenagers
for their tiredness – or laziness as it’s so often branded. It’s usually half-heartedly chalked up to
changing hormones and the collective bad attitude of the generation. However, scientists are beginning to discover
that there may be a real reason for teenagers hating the early get ups for
school that doesn't – surprisingly - blame laziness.
Sleep scientists have discovered that teenagers’ body clocks
run differently to those of adults. Your body clock is a kind of biological
timer, telling us when to wake up or go to sleep. It’s why we get jet lag after
changing time zones, or, importantly, why we hate getting up earlier than we’re
supposed to. It turns out that adults’ circadian rhythms (the mechanism that drives
our body clock) are different to teenagers’ by around 2 hours. During puberty, teenagers’ body clocks change
so that they’re naturally more alert during the evenings, making it very
difficult to fall asleep before 11pm at night. Because most teenagers have
early starts for school, it’s practically impossible for them to get the
minimum of 8 and a half hours sleep that they need a night. So the sleep
deprivation felt universally by teens is less to do with us being lazy, and
more to do with science.
So if teens are sleep deprived because of biology,
regardless of what time they go to bed in the evenings, it would seem pretty
clear that the only solution to this problem is to start schools later. I mean,
it’s not like we can physically change our body clocks. Let me give you an
example: I go to bed at around 11 each night, and wake up at 6 in the morning.
That gives me an average of 7 hours sleep per night, but only if I’m sleeping
exactly between these times. What’s more likely is that I’ll get around 6 1’2
hours sleep, 2 hours less that the minimum required amount. This isn’t just me
either – the majority of people my age get this amount of sleep – or less, when
you take into account the time needed to do homework, exercise and take part in
any extra-curricular activities. However, if schools started at around 10
o’clock rather than 8 or 9, the increased amount of sleep would benefit us
massively. I’d get the necessary amount of sleep, without sacrificing any of
the time I need to complete schoolwork.
More sleep can also lead to a variety of benefits to
learning – so it’s actually in schools’ interests to let us stay in bed for
longer. Increased sleep can improve our
memory, and help us to remember new information more easily. This is because we
consolidate new information while sleeping, so the more we sleep, the more
we’ll remember the things that we’ve learned in school. This can obviously lead
to better performance on tests and exams. More sleep has been linked to getting
better grades, something I’m sure no-one would grumble at.
And the University of Oxford have also found this. In a
recent experiment, researches have proven that forcing teenagers to wake up at
7:00 is the same as asking adults to wake up at 5:00 every day. This study is
starting to spur some changes in the education system too. Next year, a large
scale experiment will follow around 32,000 pupils in years 10 and 11 who will
start school at 10 o’clock instead of 9 to see if their GCSE results are
boosted by the extra sleep. Personally, I think it’s a brilliant idea that
could change the media’s perception of teenagers.
Some people however, are somewhat more sceptical. They don’t
think that a change in school starting times will make any difference, possibly
only leading to teenagers staying up even later because they don’t have to be
up as early. If I’m perfectly honest, I can kind of see where they’re coming
from. Furthermore, decreasing the amount of time spent in school per day could
actually be detrimental to learning, regardless of the amount of sleep that the
students have.
All in all, no-one’s entirely sure whether starting schools
later will boost grades, but it is clear that teenagers aren’t responsible for
being tired during school. The biological facts are impossible to ignore, and
so it does make sense that investigations are being done into the possibility
of starting school later. I for one, hope that the experiment succeeds, I mean,
who wouldn’t love an extra few hours in bed? So next time your parents or your
teachers tell you go to bed earlier so you won’t be tired in the mornings, tell
them to try waking up at 5. They might just find that it’s not as easy as they
think it is.
