Track 2.4
Nov 09, 2026 04:13
· 3:46
· English
· Whisper Turbo
· 7 Kaikōrero
Ka ngaro tēnei tāruatanga i roto i 29 rā.
Whakahauhau mo te rokiroki tūturu →
E whakaatu ana anake
0:00
S…
Speaker 1 (Track 2.4)
Track 2 .4,
0:01
S…
Speaker 1 (Track 2.4)
Unit 2,
0:03
S…
Speaker 1 (Track 2.4)
Listening 2.
0:05
S…
Speaker 2 (Track 2.4)
Good afternoon,
0:07
S…
Speaker 3 (Track 2.4)
class.
0:08
S…
Speaker 3 (Track 2.4)
Today,
0:09
S…
Speaker 3 (Track 2.4)
we're going to continue talking about circadian rhythm.
0:13
S…
Speaker 3 (Track 2.4)
And today's lecture is about sleep.
0:16
S…
Speaker 3 (Track 2.4)
There are two questions I'd like to discuss with you.
0:20
S…
Speaker 3 (Track 2.4)
First,
0:21
S…
Speaker 3 (Track 2.4)
is there a normal or typical sleep cycle?
0:25
S…
Speaker 3 (Track 2.4)
And second,
0:26
S…
Speaker 3 (Track 2.4)
what are some cycles that different people or cultures
0:30
S…
Speaker 3 (Track 2.4)
follow?
0:32
S…
Speaker 3 (Track 2.4)
Let's go right to the first question.
0:34
S…
Speaker 3 (Track 2.4)
Is there a normal sleep cycle?
0:37
S…
Speaker 3 (Track 2.4)
The answer is yes.
0:39
S…
Speaker 3 (Track 2.4)
Most people around the world follow a monophasic
0:44
S…
Speaker 3 (Track 2.4)
cycle.
0:45
S…
Speaker 3 (Track 2.4)
Mono means one,
0:47
S…
Speaker 3 (Track 2.4)
and phasic means a period of time.
0:52
S…
Speaker 3 (Track 2.4)
In other words,
0:54
S…
Speaker 3 (Track 2.4)
most people sleep for six to eight hours in
0:58
S…
Speaker 3 (Track 2.4)
one phase or one period,
1:00
S…
Speaker 3 (Track 2.4)
usually at night.
1:03
S…
Speaker 3 (Track 2.4)
Then they're awake for 16 to 18 hours.
1:07
S…
Speaker 3 (Track 2.4)
And after that,
1:09
S…
Speaker 3 (Track 2.4)
the cycle starts again.
1:10
S…
Speaker 4 (Track 2.4)
Now,
1:12
S…
Speaker 3 (Track 2.4)
it's true that a monophasic sleep cycle is typical for
1:16
S…
Speaker 3 (Track 2.4)
most people.
1:17
S…
Speaker 4 (Track 2.4)
However,
1:18
S…
Speaker 3 (Track 2.4)
there are some cultures where a biphasic cycle
1:22
S…
Speaker 3 (Track 2.4)
is normal.
1:23
S…
Speaker 3 (Track 2.4)
Let me explain.
1:25
S…
Speaker 3 (Track 2.4)
Bi means two.
1:27
S…
Speaker 3 (Track 2.4)
Biphasic sleepers have two sleep periods
1:32
S…
Speaker 3 (Track 2.4)
a day.
1:33
S…
Speaker 3 (Track 2.4)
In some countries,
1:34
S…
Speaker 3 (Track 2.4)
like Spain,
1:35
S…
Speaker 3 (Track 2.4)
it's traditional for people to sleep for four or five
1:39
S…
Speaker 3 (Track 2.4)
hours at night and then take a long nap in the afternoon.
1:44
S…
Speaker 5 (Track 2.4)
Okay,
1:45
S…
Speaker 3 (Track 2.4)
finally,
1:46
S…
Speaker 3 (Track 2.4)
there's a third kind of sleep cycle that isn't so
1:50
S…
Speaker 3 (Track 2.4)
common.
1:51
S…
Speaker 3 (Track 2.4)
It's called multiphasic.
1:54
S…
Speaker 3 (Track 2.4)
Multi means many.
1:56
S…
Speaker 3 (Track 2.4)
And in this cycle,
1:58
S…
Speaker 3 (Track 2.4)
people never sleep for a long time.
2:02
S…
Speaker 6 (Track 2.4)
Instead,
2:02
S…
Speaker 3 (Track 2.4)
they take many naps in every 24 -hour period.
2:07
S…
Speaker 3 (Track 2.4)
For example,
2:08
S…
Speaker 3 (Track 2.4)
they might take six short naps a day for
2:12
S…
Speaker 3 (Track 2.4)
a total of three hours of sleep.
2:15
S…
Speaker 3 (Track 2.4)
Or maybe they take one long nap
2:19
S…
Speaker 3 (Track 2.4)
and several short ones for a total of four hours.
2:23
S…
Speaker 3 (Track 2.4)
There are a few people who do this by choice
2:27
S…
Speaker 3 (Track 2.4)
because they want more time to work or study.
2:31
S…
Speaker 3 (Track 2.4)
But there are lots of other people who have to follow a multiphasic
2:36
S…
Speaker 3 (Track 2.4)
cycle as part of their work.
2:38
S…
Speaker 3 (Track 2.4)
For example,
2:39
S…
Speaker 3 (Track 2.4)
doctors,
2:40
S…
Speaker 7 (Track 2.4)
truck drivers,
2:41
S…
Speaker 3 (Track 2.4)
and yes,
2:42
S…
Speaker 3 (Track 2.4)
students.
2:44
S…
Speaker 3 (Track 2.4)
Especially at exam time.
2:47
S…
Speaker 3 (Track 2.4)
The problem with a multiphasic sleep cycle
2:51
S…
Speaker 3 (Track 2.4)
is that it's not healthy.
2:53
S…
Speaker 3 (Track 2.4)
It interrupts the body's natural circadian rhythm,
2:57
S…
Speaker 3 (Track 2.4)
the clock in our brain.
2:59
S…
Speaker 3 (Track 2.4)
As a result,
3:00
S…
Speaker 3 (Track 2.4)
people may feel tired all the time.
3:03
S…
Speaker 3 (Track 2.4)
They often make mistakes or have accidents.
3:07
S…
Speaker 6 (Track 2.4)
In fact,
3:08
S…
Speaker 3 (Track 2.4)
research shows that multiphasic sleep
3:12
S…
Speaker 3 (Track 2.4)
for weeks or months can make people sick.
3:16
S…
Speaker 7 (Track 2.4)
So,
3:18
S…
Speaker 3 (Track 2.4)
in conclusion,
3:19
S…
Speaker 3 (Track 2.4)
we can answer the two questions I asked you at the beginning.
3:23
S…
Speaker 3 (Track 2.4)
We can say that both monophasic and biphasic
3:28
S…
Speaker 3 (Track 2.4)
sleep cycles are normal in different cultures.
3:31
S…
Speaker 3 (Track 2.4)
On the other hand,
3:33
S…
Speaker 3 (Track 2.4)
most experts agree that a multiphasic sleep cycle
3:37
S…
Speaker 3 (Track 2.4)
is not a good idea for most people because it's not
3:41
S…
Speaker 3 (Track 2.4)
safe or healthy.
I hangaia tēnei tuhipoka e AI (whakaahua kōrero aunoa). Tērā pea kei roto ngā hapa - tirohia ki te oro taketake mō te whakamahinga tino hira. Ka taea te whakataki i te kaupapahere AI
Ko te whakarāpopoto
Ka pāhotia te Summarize hei waihanga i tētahi whakarāpopoto AI o tēnei tāruatanga.
E whakarāpopoto ana...
E pātai ana ki te AI Mo tēnei whakahuatuhi
E pātai ana ki tētahi mea mo tēnei tāruatanga - ka kitea e te AI ngā wāhanga whai tikanga me te whakautu.