Sleep deficiency disrupts body function
Wojciech Wiśniewski
2026-03-19
1 min. read
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Consequences of sleep deprivation
Since the body does not recover sufficiently, fatigue becomes visible on the face. Insufficient sleep reduces the water content in tissues, causing blood vessels to shift closer to the skin's surface and become more noticeable. Dark circles under the eyes result from visible blood vessels beneath the thin layer of skin. Additionally, fluid deficiency adversely affects the moisture of the eyes, which become dry, and vision becomes less sharp. Prolonged sleep deprivation slows metabolism, requiring the body to exert more effort to maintain glucose balance. Consequently, the demand for simple carbohydrates increases.