Kind: captions
Language: en
[Applause]
so recently A friend of mine says to me
Derek you know you're heaviest at night
before you go to bed and lightest in the
morning when you wake up okay but that
doesn't really seem to make sense of
course it does overnight you're not
eating anything for like 8 hours but
you're still burning calories so of
course you'll be lightest in the morning
yeah but where's the mass going like how
are you actually losing particles you
can't argue with me I've weighed myself
at night and the next morning and I know
it's true is that after you went to the
toilet no I told you that has nothing to
do with it why do you have to disagree
with everything that anyone says you
just like arguing it's not that I like
arguing it's just that your statement
seems implausible I need some kind of
mechanism that would explain how you
could be heaviest at night and then
lightest by the morning why don't you
Google
it okay so I Googled it and the results
were a little bit disturbing I'll be 3
to 5 lbs heavier during the nighttime
hours and when I wake up the next
morning I'm back back down 5 lb less I
usually wear myself in the morning I'm
anywhere from 3 to 5 lb lighter odd and
empty body weighs less than a full one
the force of gravity also can weigh a
person
down really
internet this is what we're coming
to but these are just people posting on
forums maybe people out on the street
are different so I'm going to go find
some people in Perth and see what they
say
but what time a day do you weigh the
most oh what do you reckon I suppose
evening time when eating too much night
time yeah night time night time night
time like just before you go to bed yeah
I'd say that as well and you're at your
lightest in the morning when you wake up
well your lightest when you first get
out of bed so obviously if you keep on
eating and drinking during the day you
know I can prove it because I'm one of
these sort of people that weigh yourself
weigh I weigh myself every single
morning of my life and and I'm always
always licensed in the morning when are
you the lightest first thing when you
wake up just right when you wake up yeah
you hop out of bed yeah you are a light
man yeah of course the best way to
settle this is with an experiment so
every night before I go to bed I will
weigh myself and in the morning before I
go to the bathroom I will weigh myself
again now in any scientific experiment
it's pretty important to control your
variables so every time I go from my
weigh in I'm wearing these exact
clothes I know pretty snazzy right the
hotel staff here have graciously allowed
me to use their scale but they told me I
can't take it to my room so I need to do
the weigh-ins at the
concierge I'm going down for my first
weighin Sunday night we'll see what my
weight is right now at 1:7 a.m. all
right so
72.1 Z
kilos where does the mass go while
you're sleeping like how do you lose
weight while you're sleeping I think it
evaporates she sweats a
lot I consider digesting it all so it's
kind of probably compressed and out but
that's true where does it go burning or
we burning it using it up
whatever burning carbohydrates okay so
where does the matter actually go where
does the weight actually go it's
transferred as energy that your body
uses as you want like science stuff like
ATP are you saying that we're converting
matter into
energy yes that's one way of is that
what's happen rid of it it uses up the
matter yeah so your you're just matter
is disappearing from inside you yeah
that that's my question everything you
put into you doesn't all come out the
other end as well so your body uses so
where does it come out what uses certain
parts of it to uh sustain you and let
you
live all right so it doesn't it doesn't
come out of
you not all of it it's uh Monday morning
I've just got up I need to go to the
bathroom so before I do that I'm going
to go down for my weigh in level three
hello last night I weighed
72.1 kg let's see what I weigh in the
morning
71.9 say 9 25 kilg I'm not really
surprised my mass has only Changed by
about 150 g it doesn't really surprise
me but um yeah I don't think it's uh
backing up my friend's Theory so we'll
have to do this a few more times to make
sure that uh these results are
[Music]
valid it's a difference of about .25
kilos 250 g 72.0 5 kg that's a loss of
about 300
G so it looks like every night you lose
about 250
g which is pretty similar to the amount
that I've been losing every day this
week so how do you actually lose weight
as you sleep well every night this week
I seem to lose about 250 gram I think
about 150 gram of that was water loss
through sweating and breathing out water
vapor so where is the other 100 gr going
well every time you breathe in you're
breathing about 500 mL of air but only
about a fifth of that is oxygen now 3/4
of that oxygen you'll just breathe out
again but one quar of it gets replaced
with carbon
dioxide now carbon dioxide compared to
oxygen has the extra mass of carbon on
every molecule and the mass of carbon
released in every breath is about a
100th of a gram I know that doesn't
sound like a lot but if you add it up 16
breaths a minute over 8 hours it adds up
to about 100 G every time you breathe
out you're losing weight
because no come I've never heard of that
before then I don't know me people don't
talk about it people don't think about
it cuz I I think a lot of people think
that matter can be converted to energy
that you can take stuff and then it goes
away somehow in the metabolic process in
that energy process my point is the
atoms are still there the matter is
still there you need to get rid of it
somehow and some of it is is breathed
out so people were right when they said
that you are burning calories and that's
causing you to become lighter they just
didn't think about the exhaust the water
vapor and the carbon dioxide that you
breathe out so it may be the case that
you're heaviest at night and lightest in
the morning but I think the real truth
of the matter is your heaviest after
your biggest meal and lightest after
after you've gone to the
bathroom it's after lunch on Thursday so
let's see what difference a big meal
makes I was
71.1 kg I'm now
72.5 5 nearly added a kilo and a half my
lunch was nearly a kilo and a half so
this morning when I woke up I was 72.1
kg but now I've gone to the bathroom so
I'd like to see what difference that
makes
70.6
kg that is a lot of mass that I've lost
what is that
like 1.5 kilos 1.5
kilos that's a lot of mass