Poor sleep harms health by increasing all-cause mortality, cardiovascular disease, and metabolic disorders. It impairs immune function, raises inflammation, and elevates accident risk. Cognitive and emotional effects include memory loss, slower reaction time, and higher depression/anxiety. Poor sleep also accelerates skin aging and reduces quality of life. See our prior post for tips on improving your sleep.
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🫀Cardiovascular health
Poor sleep is strongly linked to cardiovascular disease (CVD). Short sleep (<6 hours) increases hypertension, coronary artery disease, arrhythmias, and stroke risk via autonomic imbalance, endothelial dysfunction, inflammation, and altered coagulation . Irregular sleep patterns also elevate cardiometabolic risk and mortality, sometimes more than duration alone .
✨Metabolic health
Poor sleep disrupts metabolism, increasing obesity, type 2 diabetes, and metabolic syndrome. Short sleep alters appetite hormones (ghrelin/leptin), raising caloric intake and weight gain . It also impairs insulin sensitivity, promoting hyperglycemia and diabetes risk .
🧫Immune function and inflammation
Poor sleep weakens immune defenses, increasing susceptibility to infection and delaying wound healing. It also drives chronic inflammation, contributing to cardiovascular and metabolic disease .
🧠Cognitive and emotional health
Poor sleep impairs cognition, causing memory deficits, slower reaction time, and reduced executive function . It also increases depression and anxiety, creating a bidirectional loop with mental health disorders .
🥽Accident risk and safety
Poor sleep increases accidents and injuries due to impaired vigilance, slower reactions, and microsleeps, notably in driving and occupational settings .
💄Skin health and aging
Poor sleep accelerates skin aging, with higher intrinsic aging scores, delayed barrier recovery, and slower UV-induced erythema resolution . It also worsens self-perceived appearance and attractiveness .
☠️Mortality risk
Poor sleep harms health by increasing mortality, cardiovascular and metabolic disease, immune dysfunction, cognitive/emotional impairment, accidents, and skin aging. Targeted interventions can restore health and reduce risk.
Consult your provider for specific health concerns.
For educational purposes only.