Read the passage carefully :
Chronobiology : The Science of Time is within Us.
(1) Beneath the conscious rhythm of our waking lives lies a subtler, deeply embedded tempo of our body’s internal clock, orchestrated by the field of chronobiology. This clock doesn’t tick with mechanical precision but rather responds to cues from nature: the rising sun, the fading light, or the temperature of the wind. Governed by the suprachiasmatic nucleus in the brain, this circadian rhythm aligns our sleep, metabolism, hormone release, and even mood with the 24-hour cycle.
(2) Scientists have discovered that disrupting this internal clock whether through jet lag, night shifts, or excessive exposure to screens can lead to a biological desynchronization that affects everything from digestion to memory. A study from the University of Colorado found that just one week of camping away from artificial light, resets participants’ circadian rhythm entirely. The body, it seems, remembers the sun even when the mind forgets.
(3) What’s striking is the clock’s inflexible loyalty to nature. Artificial attempts to override it such as caffeine-induced wakefulness or screen-induced sleeplessness may work temporarily but often has a hidden cost : chronic fatigue, hormonal imbalance, and weakened immunity. Its not just sleep we lose, it’s the invisible equilibrium that our biology depends on.
(4) Modern life, with its blurring of day and night, has birthed what experts call ‘social jet lag’ a state where our societal obligations pull us in one temporal direction, while our biology tugs us in another. Adolescents are particularly vulnerable, as their natural clocks shift later during puberty, clashing with early school timings. The result ? A generation persistently deprived of meaningful rest.
(5) What is the way forward – we need to understand that sleep deficiency and chronic fatigue are considered major risk factors for diseases, depression, and accidents. People must take care of sleep hygiene at regular time, avoid screen time before bed time, and ensure comfortable conditions. Taking short breaks for stretching, breathing, or a few hours of exercise reduces tension. When body demands rest, it should not be ignored. One must respond to it rather than ignoring it.
(6) Chronobiologists argue that respecting internal time could transform public health. Adjusting school hours, designing light-conscious architecture or aligning work shifts with biological peaks could reduce stress and enhance productivity. As we continue racing against time, perhaps the most radical act is to slow down and listen to the timekeepers within us quiet, persistent and wise.