By HeapNews
As the UK prepares to turn clocks back for daylight saving time (DST), a growing chorus of researchers is urging its abolition, pointing to significant health concerns. In a recent study published in the Journal of Sleep Research Scientists argue that the biannual clock shifts in spring and autumn disrupt sleep and circadian health, with implications for productivity, mood, and overall well-being.
“It’s often erroneously assumed that DST provides us with more sunlight. In reality, it only shifts our behaviour by adjusting schedules forward by an hour,” the study stated. Although DST may result in more sunlight after work, it reduces morning light exposure, potentially affecting alertness and mood.
Consultant neurologist Dr. Sudhir Kumar from Apollo Hospitals, Hyderabad, highlighted the acute impact of DST in the spring, when clocks are moved forward by an hour. “The acute impact of switching to DST, especially in spring, is an hour of sleep loss. This can lower productivity, impair mood and health, and reduce performance,” he said. “Over time, DST’s prolonged disruption of circadian rhythms impacts well-being and performance.”
Dr. Navneet Sood from the pulmonary department at Dharamshila Narayana Hospital echoed these concerns, noting that DST-related disruptions can lead to fatigue and serious health conditions. “Research shows the body can take days to adjust to DST, causing concentration issues and productivity dips. Sleep is essential for immune function, cognitive performance, and emotional regulation,” he said.
Summer’s extended evening light, another product of DST, can also delay melatonin production, affecting sleep quality. “Together, seasonal DST clock changes are less than optimal for sleep and circadian physiology, with potential health and productivity risks,” Dr. Kumar added.
To counteract DST’s effects, Dr. Sood recommended a gradual adjustment in sleep schedules a few days before the shift. “Morning sunlight exposure can help reset the body’s internal clock. Avoid heavy meals close to bedtime, and establish a calming pre-sleep routine to improve sleep quality,” he advised.
Highlighting the need for sleep hygiene, Dr. Sheetal Radia from Wockhardt Hospitals, Mira Road, recommended minimizing blue light exposure an hour before bed to boost melatonin levels naturally. “Blue light reduction one hour before sleep can help decrease melatonin secretion,” she explained. For some, melatonin supplements under clinical guidance could help ease transitions.
Ultimately, researchers and medical professionals are increasingly in agreement: prioritizing stable, quality sleep patterns is vital for long-term health.