英文關鍵字
aged
awake
bed
bedtime
cell
cellphone
dark
darkness
device
disorder
distracted
distraction
edge
elder
elderly
gadget
home
house
inability
insomnia
insomnious
killing
lifestyle
male
man
mobile
night
old
pension
pensioner
people
phone
problem
restless
retired
retirement
scrolling
senior
sleep
sleepless
sleeplessness
smart
smartphone
spending
technology
time
troubled
troubles
unhealthy
wakefulness