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Strategies for Ielts reading| False or Not Given | Fill in the Blank
Strategies for Ielts reading| False or Not Given | Fill in the Blank
OR
NOT
GIVEN?
Strategies for Ielts reading| False or Not Given | Fill in the Blank
Sleep is a naturally recurring state of mind and body characterized by disengagement
from surroundings, relaxed muscle, lower blood pressure, as well as more regular
breathing and heart rate. Despite the fact that sleep is something that naturally happens,
it has a major impact in our overall quality of life.
Sleep is internally influenced by our daily biological clock or commonly referred as
circadian rhythm. The amount of sleep needed by adults is different from that of babies.
Infants need at least 16 to 18 hours of sleep a day, then the time spent for sleeping
decreases gradually as one grows older. It is believed that the ability to sleep declines
with aging, and this may be a key factor why many adults suffer from sleep deprivation
problems.
Despite the prevalence of internal factors affecting humans' sleep, external factors have
become the main concerns related to sleep. Sleep disorder is said to be affected mostly
by external factors such as light's effect, anxiety, medical conditions, sleep environment,
and medication as well as the use of other substance. Light affects humans' sleep both
directly by making it more difficult for them to sleep and indirectly by means of affecting
their internal clock and hence, changing their preferred time to sleep. Anxiety and stress
level become the one of the most common reason why somebody finds it hard to sleep
nowadays. This is due to the fact that our body is programmed to stay awake when
facing dangerous or stressful situations, causing the inability to enter what's so called