A visible side effect makes a short-sighted focus because of the long must tilt the screen to read the small text may cause. Muscle aches at the eyes. Dementia see ghosting, including dry eye symptoms, therefore, affect the eyes, short length, tilt and depression, insomnia, because the blue light from the mobile screen would interfere with the nervous system. The brain and the retina, causing insomnia or restless sleep there himself.
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