A Public Crisis Called Insomnia

Ooty:Elaborating on how disrupted sleep and the broken biological clock in the body are driving modern diseases due to imbalances in the sleep cycle, S. Pranav Ragavendra and Apsara Unni, said evidence-based observations and studies showed that in the night hours, while most of the world sleeps, another world quietly awakens.

Hospital corridors remain brightly illuminated, factory machines continue their relentless hum, police officers patrol deserted streets, and thousands of healthcare professionals, emergency responders, and night-shift workers keep society functioning through the darkest hours of the night.

Yet, beneath this silent productivity lies an overlooked public health crisis - insomnia.

Once regarded as a minor inconvenience, insomnia has evolved into one of the defining lifestyle disorders of the 21st century, disrupting the body’s biological clock and silently increasing the risk of cardiovascular disease, diabetes, depression and other chronic illnesses. In an era that never truly sleeps, the greatest casualty may be our own health.

Insomnia is a clinical sleep disorder characterised by persistent difficulty in falling asleep, staying asleep, or waking up too early despite adequate opportunity for rest. While occasional sleeplessness is common, chronic insomnia can persist for months, reducing concentration, productivity, emotional stability, and overall quality of life.

Sleep is not a passive state of inactivity. During deep sleep, the brain strengthens memory, tissues repair themselves, hormones regain balance, and the immune system prepares to defend the body against diseases. Every interrupted night weakens this remarkable biological restoration.

Medical evidences increasingly show that chronic insomnia is closely associated with the development of several non-communicable diseases. What begins as disturbed sleep can gradually affect nearly every major organ of the body. High blood pressure develops more readily when the heart loses its nightly period of recovery, significantly increasing the risk of cardiovascular disease.

Poor sleep also reduces insulin sensitivity and alters the hormones that regulate appetite, contributing to type-2 diabetes and obesity.

The brain is equally vulnerable - persistent insomnia impairs emotional regulation, leading to anxiety and depression both causes and consequences of sleeplessness. The kidneys are not spared. Inadequate sleep disrupts the normal circadian regulation of renal function, leading to increased night-time urine production (nocturia), frequent awakenings to urinate, and long-term deterioration of kidney health. Studies suggest that chronic sleep disruption may accelerate the progression of chronic kidney disease and increase the risk of renal failure in susceptible individuals.

The danger is subtle. Insomnia, the reason for sleepless nights and silent fights, rarely causes immediate illness; instead, it quietly creates the biological conditions in which chronic disease flourishes - one restless night at a time, elaborated Pranav Ragavendra and Apsara Unni.