INSOMNIA SHORTENS LIFE EXPECTANCY
An analysis of 16 studies [Trusted Source] that covered over one million participants and 112,566 deaths looked at the correlation between sleep duration and mortality. They found that sleeping less increased risk for death by 12 percent, compared to those who slept seven to eight hours per night. A more recent study looked at the effects of persistent insomnia and mortality over 38 years. They found that those with persistent insomnia had a 97 percent increased risk of death.
INSOMNIA IS A RISK FACTOR FOR THE DEVELOPMENT OF NEURODEGENERATIVE DISEASES
Long-term Sleep Disruption is a common symptom of many neurodegenerative diseases such as Alzhemer's disease and Parkinson's disease, and it has recently been identified as a risk factor for these and other neurodegenerative disorders (link). There is also research suggesting a link between Motor Neurone Disease and oxidative stress (link), which is caused by chronic lack of sleep (link).
INSOMNIA DAMAGES THE IMMUNE SYSTEM & INCREASES THE RISK OF DEVELOPING AUTO-IMMUNE DISEASES
In 2015 Hsaio, Chen, Tseng et al published research conducted with 85,000 patients and found that those with non-apnea sleep disorder were at higher risk of developing autoimmune diseases
*** reasearch is currrently underway in the USA to determine whether an immune system compromised through long term sleep disorder is a factor in susceptibiltiy to more serious Covid-19 symptoms.
SLEEP DEPRIVATION IS CLOSLY LINKED TO HYPERTENSION
The link between poor sleep and cardiovascular health problems is increasingly well-established in scientific literature. Poor sleep creates stress and raises blood pressure, or keeps an already raised BP at a high level. Link 1 / Link 2
DISORDERED SLEEP IS A RISK FACTOR FOR OBESITY AND TYPE II DIABETES
Insomnia means the body has significantly lower capability to produce the blood-sugar regulating hormone insulin. Meanwhile, your body secretes more stress hormones (such as cortisol), which helps you stay awake but makes it harder for insulin to do its job effectively. The net effect: Too much glucose stays in the bloodstream, which can increase your risk of developing type 2 diabetes (Link).
SLEEP DEPRIVATION CAN TRIGGER ANXIETY/DEPRESSION OR MAKE IT SIGNIFICANTLY WORSE.
Lack of sleep can alter mood dramatically. Over time, it causes emotional instability and may lessen the ability to cope with stress. Insomnia and depression both influence each other and there is a constant 'chicken and egg' debate as to which causes the other. Research does suggest that high levels of insomnia can influence the severity of the risk of depression (Link). Importantly, evidence suggets that treating insomnia can significantly improve depression (Link).
NOTE: ALL REPORTED RESEARCH IS ASSUMED TO HAVE BEEN CONDUCTED WITHIN THE PARAMETERS OF ETHICAL COMMITTEE APPROVAL. RESEARCH SHOULD ALWAYS BE REGARDED AS INDICATIVE RATHER THAN IRREFUTABLE AS IT INVARIABLY CONTAINS BIAS AND IN SOME CASES NEEDS TO BE REPLICATED AND POSSIBLY MORE TARGETED TO SPECIFIC GROUPS TO EITHER UPHOLD OR DISPROVE CURRENT FINDINGS.
... that sleep deprivation is a MAJOR risk to human health. We can no longer ignore the scientific research into various physical, psychological & emotional processes which clearly show that almost every aspect of human functioning is damaged, sometimes to life-limiting degrees, by prolonged lack of sleep.