2020, unfortunately, has been a year that has not brought us much happiness, and for a significant proportion of individuals, sleep disturbances have added to their woes. The lockdowns imposed to prevent the spread of the novel coronavirus, SARS-CoV-2, have led to significant behavioral changes and adaptations to help individuals optimize their productivity, which in turn, has affected normal physiological processes related to health.
Most mammals have a circadian body-clock that rhythmically has sleep and wake cycles. In humans, eight hours of sleep is considered the average requirement for most individuals, and the presence of cues such as external light and temperature influence such cycles. In the pre-COVID era, the timing, duration, and regularity of sleep in most individuals was determined by rigid schedules related to work or study.
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Post the lockdown, this has now been left to the vagaries of the demands of the new normal, and this has caused circadian disturbances. Work/study from home is relatively unstructured, and the increased digital media/backlit device exposure leads to the biological clock getting mixed signals about day-night transition, often leading to delays in sleep onset. A survey conducted among 1511 participants in India revealed that younger individuals and women were more susceptible to these changes, causing a state of "social jetlag".
There are several sleep disorders marked in lockdown like Insomnia. sleep apnea and many more. Pixels
When conventional gender roles are in play, working women now have to multitask between household and work responsibilities, in addition to assisting younger kids with online school, and this possibly explains why their sleep schedules have been most disrupted. What has also been reported in studies is that despite sleeping for longer hours, individuals often report a poorer quality of sleep, resulting in feeling less rested.
Social isolation, financial/job insecurity, stigmatization of individuals with COVID-19, the constant media exposure to reports of rising infections and deaths, and stories of near and dear ones succumbing to the disease all lead to a sense of helplessness, anxiety, and depression. Insomnia is a common manifestation of depression, and as treating physicians, we have experienced a significant proportion of individuals report the symptom during the lockdown.
In addition, post-traumatic stress disorder (PTSD), anxiety, and depression, which were reported in up to half of all individuals who suffered from SARS infection in 2003 are likely to affect an equally high percentage of individuals who have had COVID-19, and insomnia is being recognized as a frequent symptom of what is now being called "long COVID".
A psychological evaluation should be considered in all individuals who are experiencing insomnia, and the temptation to consume sedatives in a knee-jerk manner must be avoided. The elderly are especially vulnerable, and careful attention must be paid to an elderly person who has had new-onset insomnia during the lockdown.
The most common of all is Insomnia. The problem of not being able to sleep. Pixels
Sleep apnea is one of the commonest sleep disorders in the population, affecting up to 10 percent of adults. Inactivity, weight gain, alcohol consumption are all risk factors for obstructive sleep apnea, and lockdowns, by limiting one's activity outside the home along with binge eating/snacking and drinking might worsen pre-existing sleep apnea, or cause it in individuals who have significantly gained weight during the lockdown.
Individuals who snore loudly, especially if they have high blood pressure or other cardiovascular diseases must be assessed for sleep apnea.
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The importance of sleep to maintain health cannot be overemphasized. It plays an important role in immunity and in recovery from infections. Simple measures that can be employed to ensure sleep hygiene during the lockdown would be maintaining a structure to one's day and having a constant sleep-wake time.
Avoiding bright lights in the form of devices close to bedtime, keeping the bedroom as dark as possible, avoiding caffeinated beverages for 6-8 hours prior to bedtime, exercising in the morning, and avoiding excessive amounts of alcohol.
If, despite these measures, one fails to ensure an adequate quantity and quality of sleep, seeking professional help to address the potential underlying causes would be prudent. (IANS)