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Once, Sun was considered a deity and still
now considered as a god. The ancient people were never wrong. Sun had and still
has the full potential to cure the humanity, at least as a therapist. Because,
Sun truly can bring the happiness. Several research confirmed that, Sunlight
can lift your mood.
Lack of sun exposure has been linked to
fertility problems, some forms of cancer and depression. Researchers said,
People get depressed with sadness, fatigue and hopelessness from a lack of adequate
sunlight. This is called seasonal affective disorder
(SAD). It affects people in the
winter season most.
Sun also induced Vitamin D in the body. Research
confirmed that, vitamin D is very helpful for health and to fight with disease.
It affects your DNA through vitamin D receptors (VDRs), which binded with
specific locations of the human genome. In our body almost 3,000 genes are influenced by
vitamin D.
Melatonin is a hormone that controls sleep,
and serotonin in a neurotransmitter that is tied to states of wakefulness and
being in a "good mood." Serotonin is the chemical targeted by a class
of anti-depressants called SSRIs, which keep higher levels of serotonin in the
bloodstream to help elevate mood.
When the body perceives sunlight, serotonin
levels increase. And the more sunlight the human body is exposed to, the more
serotonin the brain produces [source: ScienceBlog].
So in effect, melatonin and serotonin have an inverse-proportional relationship
that is guided by the body's perception of sunlight. The overall effect is
"downtime" at night and "uptime" during the day.
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