Lighting Research & Technology,
Год журнала:
2022,
Номер
54(6), С. 609 - 624
Опубликована: Авг. 5, 2022
Evening
exposure
to
electric
light
can
acutely
suppress
melatonin
levels
and
adversely
affect
subsequent
sleep.
We
conducted
a
systematic
review
with
meta-analysis
investigating
the
influence
of
evening
illuminance
on
polysomnographically
(PSG)-assessed
also
explored
how
melanopsin
(expressed
in
melanopic
equivalent
daylight
(EDI)
affects
human
sleep
features.
included
polysomnographic
laboratory
studies
healthy
humans
for
effects
duration,
pre-sleep
exposures
between
6:00
p.m.
1:00
a.m.
From
440
identified
articles,
114
met
eligibility
criteria
screening,
21
reported
type
source/spectral
characteristics,
12
as
eligible
review.
Meta-analysis
showed
latency,
efficiency
slow
wave
sleep,
overall
effect
sizes
(95%
confidence
interval)
0.69
(−0.50;
1.88),
0.34
(−0.13;
0.82)
−0.61
(−1.85;
0.62),
respectively.
Estimated
EDI
range
100–1000
lx
yielded
clear
dose–response
relationships
latency
efficiency,
but
not
Whilst
duration
indicated
no
apparent
single
PSG-assessed
we
observed
evidence
relationship
based
EDI.
Hence,
may
provide
robust
predictor
non-visual
responses
Somnologie - Schlafforschung und Schlafmedizin,
Год журнала:
2019,
Номер
23(3), С. 147 - 156
Опубликована: Авг. 20, 2019
Humans
live
in
a
24-hour
environment,
which
light
and
darkness
follow
diurnal
pattern.
Our
circadian
pacemaker,
the
suprachiasmatic
nuclei
(SCN)
hypothalamus,
is
entrained
to
solar
day
via
pathway
from
retina
synchronises
our
internal
biological
rhythms.
Rhythmic
variations
ambient
illumination
impact
behaviours
such
as
rest
during
sleep
activity
wakefulness
well
their
underlying
processes.
Rather
recently,
availability
of
artificial
has
substantially
changed
especially
evening
night
hours.
This
may
increase
risk
developing
rhythm
sleep-wake
disorders
(CRSWD),
are
often
caused
by
misalignment
endogenous
rhythms
external
light-dark
cycles.
While
exact
relationship
between
CRSWD
remains
be
established,
nocturnal
been
shown
alter
humans.
On
other
hand,
can
also
used
an
effective
noninvasive
therapeutic
option
with
little
no
side
effects,
improve
sleep,mood
general
well-being.
article
reviews
current
state
knowledge
regarding
effects
on
rhythms,
sleep,
mood.
Biochemical Pharmacology,
Год журнала:
2020,
Номер
191, С. 114304 - 114304
Опубликована: Окт. 28, 2020
Daylight
is
ubiquitous
and
crucial
for
mammalian
vision
as
well
non-visual
input
to
the
brain
via
intrinsically
photosensitive
retinal
ganglion
cells
(ipRGCs)
that
express
photopigment
melanopsin.
The
ipRGCs
project
circadian
clock
in
suprachiasmatic
nuclei
thereby
ensure
entrainment
24-hour
day-night
cycle,
changes
daylength
trigger
appropriate
seasonal
behaviours.
also
perihabenular
nucleus
surrounding
regions
modulate
mood,
stress
learning
animals
humans.
Given
light
has
strong
direct
effects
on
cognition,
alertness,
performance,
sleep,
can
be
considered
a
"drug"
treat
many
clinical
conditions.
Light
therapy
already
established
winter
other
depressions
sleep
disorders.
Beyond
visual
retina,
daylight
contributes
prevent
myopia
young
by
its
impact
eye
development,
important
Vitamin
D
synthesis
bone
health
skin.
sun
most
powerful
source
and,
dependent
dose,
ultraviolet
radiance
toxic
living
organisms
used
disinfectant.
Most
research
involves
laboratory-based
electric
light,
without
dynamic
spectral
undergoes
moment
moment.
There
gap
between
importance
of
human
beings
amount
being
done
this
subject.
taken
granted
an
environmental
factor,
enjoyed
or
avoided,
according
More
awareness
architecture
urban
design
beyond
aesthetic
values
comfort
may
lead
higher
quality
work
environments.
Although
we
do
not
yet
have
factual
basis
assumption
natural
overall
"better"
than
debate
mandates
serious
consideration
sunlight
just
solar
power
but
biologically
necessary
sustainable
healthy
living.
Abstract
The
global
coronavirus
19
(COVID-19)
pandemic
and
associated
lockdown
restrictions
resulted
in
the
majority
of
sports
competitions
around
world
being
put
on
hold.
This
includes
National
Basketball
Association,
UEFA
Champions
League,
Australian
Football
Tokyo
2020
Olympic
Games,
regional
competitions.
mitigation
strategies
place
to
control
have
caused
disruption
daily
schedules,
working
environments,
lifestyle
factors.
Athletes
rely
regular
access
training
facilities,
practitioners,
coaches
maintain
physical
mental
health
achieve
maximal
performance
optimal
recovery.
Furthermore,
participation
sport
at
any
level
increases
social
engagement
promotes
better
health.
It
is,
therefore,
critical
understanding
how
COVID-19
measures
affected
lives
athletes.
We
surveyed
elite
sub-elite
athletes
(n
=
565)
across
multiple
sports.
Significant
disruptions
were
reported
for
all
factors
including
interactions,
activity,
sleep
patterns,
found
a
significant
increase
total
time
latency,
as
well
delay
mid-sleep
times
decrease
jetlag.
Training
frequency
duration
significantly
decreased.
Importantly,
changes
sleep-related
with
outcomes.
With
spikes
cases
rising
governments
reinstituting
lockdowns
(e.g.
United
Kingdom;
Melbourne,
Australia;
California,
USA)
these
results
will
inform
messaging
manage
population
whom
is
critical.
Clocks & Sleep,
Год журнала:
2020,
Номер
2(1), С. 61 - 85
Опубликована: Фев. 28, 2020
Daylight
stems
solely
from
direct,
scattered
and
reflected
sunlight,
undergoes
dynamic
changes
in
irradiance
spectral
power
composition
due
to
latitude,
time
of
day,
year
the
nature
physical
environment
(reflections,
buildings
vegetation).
Humans
their
ancestors
evolved
under
these
natural
day/night
cycles
over
millions
years.
Electric
light,
a
relatively
recent
invention,
interacts
competes
with
light–dark
cycle
impact
human
biology.
What
are
consequences
living
industrialised
urban
areas
much
less
daylight
more
use
electric
throughout
day
(and
at
night),
on
general
health
quality
life?
In
this
workshop
report,
we
have
classified
key
gaps
knowledge
research
into
three
main
groups:
(I)
uncertainty
as
quantity
needed
for
“optimal”
physiological
psychological
functioning,
(II)
lack
consensus
practical
measurement
assessment
methods
tools
monitoring
real
(day)
light
exposure
across
multiple
scales,
(III)
insufficient
integration
exchange
bases
different
disciplines.
Crucial
short
long-term
objectives
fill
proposed.
BACKGROUND.
The
circadian
system
entrains
behavioral
and
physiological
rhythms
to
environmental
cycles,
modern
lifestyles
disrupt
this
entrainment.
We
investigated
a
timed
exercise
intervention
phase
shift
the
internal
rhythm.
Clocks & Sleep,
Год журнала:
2019,
Номер
1(1), С. 193 - 208
Опубликована: Март 13, 2019
Light,
through
its
non-imaging
forming
effects,
plays
a
dominant
role
on
myriad
of
physiological
functions,
including
the
human
sleep-wake
cycle.
The
non-image
effects
light
heavily
rely
specific
properties
such
as
intensity,
duration,
timing,
pattern,
and
wavelengths.
Here,
we
address
how
influence
sleep
wakefulness
in
humans
acute
e.g.,
alertness,
and/or
circadian
timing
system.
Of
critical
relevance,
discuss
different
characteristics
exposure
across
24-h
day
can
lead
to
changes
propensity,
architecture,
wake
electroencephalogram
(EEG)
power
spectra.
Ultimately,
knowledge
affects
improve
settings
at
home
workplace
health
well-being
optimize
treatments
chronobiological
disorders.
