この本の別のエディションでよく使われている100語。
activity
afternoon
american
asthma
attacks
babies
bed
bedtime
best
better
between
blood
body
bp
cancer
cause
changes
children
clock
cycle
daily
day
daytime
different
disorder
doctor
drugs
early
effects
even
evening
exercise
fall
feel
first
food
found
four
get
go
health
heart
help
high
home
hormone
hours
illness
later
less
levels
light
may
meals
medications
melatonin
men
minutes
months
morning
need
new
night
occur
often
page
pain
pattern
people
percent
persons
problems
report
researchers
rhythms
schedule
school
see
shift
show
sleep
start
still
study
symptoms
take
taking
temperature
three
time
treatment
two
type
university
use
week
women
work
workers
years