We often view the resulting exhaustion as a simple debt of hours, but as Dr Sneha S consultant internal medicine at Manipal Hospital, Kanakpura Road, Bengaluru, explains, the reality is far more disruptive. “When our schedules shift abruptly, our internal clocks become desynchronized, leading to sleep that is light, fragmented, and fundamentally unable to perform its restorative functions,” she shares. Repairing a shattered sleep schedule is not a matter of sheer willpower or catching up’ on a Sunday morning. Instead, it requires a strategic realignment of the biological signals – light, temperature, and metabolism – that govern our circadian rhythms. morning arrives after a weekend of late-night festivities, the most common dilemma is whether to force ourselves out of bed at the usual time or to sleep in and adjust slowly. physiology of the body clock favors consistency. When we shift our wake-up times gradually – by perhaps 15 to 30 minutes each day – we provide our brain with reliable time cues. These cues, primarily linked to the cycle of light and darkness, allow the body to anchor itself. While some may thrive on an immediate return to routine, the gradual approach reduces the shock to the system and makes the transition more sustainable in the long term A warm pre-sleep shower may seem counterintuitive to cool down, but the science is sound. A warm shower causes vasodilation – blood moves to the skin’s surface. When you step out of the shower, that heat rapidly dissipates into the air, causing your core temperature to plummet. This mimicry of the natural circadian dip tells your brain it is safe to shut down. Furthermore, the environment must support this cooling. Setting your bedroom temperature to approximately 18 degrees Celsius ensures that your body doesn’t have to expend metabolic energy to stay cool, allowing you to remain in the deeper, more restorative stages of sleep throughout the night.” While alcohol may shorten the time it takes to fall asleep, it wreaks havoc on your sleep architecture. “Alcohol specifically suppresses REM (Rapid Eye Movement) sleep, which is the stage responsible for emotional regulation, memory consolidation, and cognitive recovery. As the body metabolizes alcohol during the night, the sympathetic nervous system becomes overactive, leading to frequent micro-awakenings
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