Simran Arora

The 'Tired but Wired' Phenomenon: Why You Feel Exhausted Yet Cannot Sleep

insomnia

lack of sleep

New Delhi: There is a particular kind of frustration that comes with lying in bed, physically spent after a long day, and finding that sleep simply will not arrive. The body is done. The mind is not. This experience has a name in <a href="https://www.healthandme.com/health-wellness/10-sleep-hygiene-tips-that-will-help-you-sleep-better-article-151044700" data-type="tilCustomLink" target="_blank">sleep</a> medicine, and it is becoming less of an anomaly and more of a pattern for a growing number of people.

In an interview with Health and Me, Dr Shivani Swami, Additional Director – Pulmonology, CK Birla Hospitals, Jaipur, decoded the role of cortisol in affecting sleep and rest patterns.

<h2>The explanation starts with cortisol</h2>

Stress, whether from work pressure, unresolved worry, or the accumulated friction of a demanding day, keeps cortisol levels elevated into the evening. Cortisol is the hormone that keeps the brain alert and ready to respond. It has an important job during the day. The problem arises when it does not fall away as the evening progresses, which is what stress prevents. The brain receives no signal that the threat has passed, so it stays primed. Sleep requires the opposite of primed.

Screen use in the hours before bed adds another layer. The blue light that phones, laptops, and televisions emit suppresses melatonin, which is the hormone the body uses to initiate sleep. This is not a subtle effect. It shifts the body’s internal clock, making the brain read the late evening as daytime. People who spend an hour on their phone before bed are, in physiological terms, making sleep harder to reach.

Read more: <a href="https://www.healthandme.com/health-wellness/just-3-nights-of-poor-sleep-is-enough-to-harm-your-heart-health-article-151788899" data-type="tilCustomLink" target="_blank">Just 3 Nights Of Poor Sleep Is Enough To Harm Your Heart Health</a>

Irregular schedules create their own complications

The body’s circadian rhythm is calibrated by consistency. When sleep and wake times shift from one day to the next, the rhythm loses its anchor. The body cannot predict when rest is coming, so it stops preparing for it at a reliable time. This is why erratic schedules, even among people who eventually get enough total sleep hours, tend to produce poor-quality rest.

The mental dimension sits separately from all of this. A mind that is processing, planning, replaying, or anticipating does not transition easily into sleep, regardless of how exhausted the body is. The cognitive activity itself is stimulating enough to override physical fatigue. This is what produces the wired quality that makes the tiredness feel irrelevant.

Left unaddressed, the pattern compounds

Shortened or fragmented sleep affects concentration, mood, immune function, and judgement. People become harder to disturb at first and then more fragile over time as the deficit accumulates.

What interrupts the cycle is not dramatic. A consistent bedtime and wake time, maintained even when it feels inconvenient, gives the circadian rhythm something to organise around. Screens set aside an hour before bed allow melatonin to do its work. A brief wind-down practice, whether reading, stretching, or simply sitting quietly, gives the brain a transition rather than asking it to move directly from full engagement to sleep. Stress that is processed during the day through breathing, reflection, or physical activity is less likely to resurface at night looking for somewhere to go.

Read more: <a href="https://www.healthandme.com/health-wellness/struggling-with-sleep-neurologist-shares-3-simple-tips-for-better-sleep-health-article-153066173" data-type="tilCustomLink" target="_blank">Struggling With Sleep? Neurologist Shares 3 Simple Tips For Better Sleep Health</a>

A cool, dark, and quiet sleep environment reduces the stimulation the brain has to work against. None of these are large interventions. The difficulty is the consistency they require, which is harder to maintain than any single habit change. 

When the pattern persists despite reasonable adjustments, it warrants clinical attention. Chronic sleep disruption rarely resolves without some form of structured support, and the longer it continues, the wider its effects spread.

Health Conditions A-Z

health

cortisol

sleep disorders

sleep

screen time

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New Delhi: There is a particular kind of frustration that comes with lying in bed, physically spent after a long day, and finding that sleep simply will not arrive. The body is done. The mind is not. This experience has a name in sleep medicine, and it is becoming less of an anomaly and more of a pattern for a growing number of people.In an interview with Health and Me, Dr Shivani Swami, Additional Director – Pulmonology, CK Birla Hospitals, Jaipur, decoded the role of cortisol in affecting sleep and rest patterns.The explanation starts with cortisolStress, whether from work pressure, unresolved worry, or the accumulated friction of a demanding day, keeps cortisol levels elevated into the evening. Cortisol is the hormone that keeps the brain alert and ready to respond. It has an important job during the day. The problem arises when it does not fall away as the evening progresses, which is what stress prevents. The brain receives no signal that the threat has passed, so it stays primed. Sleep requires the opposite of primed.  Screen use in the hours before bed adds another layer. The blue light that phones, laptops, and televisions emit suppresses melatonin, which is the hormone the body uses to initiate sleep. This is not a subtle effect. It shifts the body’s internal clock, making the brain read the late evening as daytime. People who spend an hour on their phone before bed are, in physiological terms, making sleep harder to reach.Read more: Just 3 Nights Of Poor Sleep Is Enough To Harm Your Heart HealthIrregular schedules create their own complicationsThe body’s circadian rhythm is calibrated by consistency. When sleep and wake times shift from one day to the next, the rhythm loses its anchor. The body cannot predict when rest is coming, so it stops preparing for it at a reliable time. This is why erratic schedules, even among people who eventually get enough total sleep hours, tend to produce poor-quality rest.The mental dimension sits separately from all of this. A mind that is processing, planning, replaying, or anticipating does not transition easily into sleep, regardless of how exhausted the body is. The cognitive activity itself is stimulating enough to override physical fatigue. This is what produces the wired quality that makes the tiredness feel irrelevant.Left unaddressed, the pattern compoundsShortened or fragmented sleep affects concentration, mood, immune function, and judgement. People become harder to disturb at first and then more fragile over time as the deficit accumulates.What interrupts the cycle is not dramatic. A consistent bedtime and wake time, maintained even when it feels inconvenient, gives the circadian rhythm something to organise around. Screens set aside an hour before bed allow melatonin to do its work. A brief wind-down practice, whether reading, stretching, or simply sitting quietly, gives the brain a transition rather than asking it to move directly from full engagement to sleep. Stress that is processed during the day through breathing, reflection, or physical activity is less likely to resurface at night looking for somewhere to go.Read more: Struggling With Sleep? Neurologist Shares 3 Simple Tips For Better Sleep HealthThe ideal sleep set-upA cool, dark, and quiet sleep environment reduces the stimulation the brain has to work against. None of these are large interventions. The difficulty is the consistency they require, which is harder to maintain than any single habit change. When the pattern persists despite reasonable adjustments, it warrants clinical attention. Chronic sleep disruption rarely resolves without some form of structured support, and the longer it continues, the wider its effects spread.