Shift work

shiftgraveyard shiftnight shiftshiftsShift-Worknight shiftsnight workWork shiftnight workersnight working
Shift work is an employment practice designed to make use of, or provide service across, all 24 hours of the clock each day of the week (often abbreviated as 24/7).wikipedia
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Shift work sleep disorder

shift work disorderexhaustedshift work
Shift work sleep disorder is a circadian rhythm sleep disorder characterized by insomnia, excessive sleepiness, or both.
There are numerous shift work schedules, and they may be permanent, intermittent, or rotating; consequently, the manifestations of SWSD are quite variable.

Melatonin

CircadinmelatonergicN-acetyl-5-methoxytryptamine
This may be due to alterations in circadian rhythm: melatonin, a known tumor suppressor, is generally produced at night and late shifts may disrupt its production.
As a supplement, it is often used for the short-term treatment of trouble sleeping such as from jet lag or shift work.

Insomnia

trouble sleepingsleeplessnessdifficulty sleeping
Shift work sleep disorder is a circadian rhythm sleep disorder characterized by insomnia, excessive sleepiness, or both.
Other risk factors include working night shifts and sleep apnea.

Lark (person)

larkEarly birdday person
The health consequences of shift work may depend on chronotype, that is, being a day person or a night person, and what shift a worker is assigned to.
They are thus well-suited for working the day shift.

Myocardial infarction

heart attackheart attacksacute myocardial infarction
Shift work also increases the risk of developing cluster headaches, heart attacks, fatigue, stress, sexual dysfunction, depression, dementia, obesity, metabolic disorders, gastrointestinal disorders, musculoskeletal disorders, and reproductive disorders.
Shift work is also associated with a higher risk of MI.

Night owl (person)

night owlnight owlsevening person
The health consequences of shift work may depend on chronotype, that is, being a day person or a night person, and what shift a worker is assigned to.
Some night owls have a preference or habit for staying up late, or stay up to work the night shift.

24/7 service

24/724 hours a day24/7/365
Shift work is an employment practice designed to make use of, or provide service across, all 24 hours of the clock each day of the week (often abbreviated as 24/7).
Many 24/7 services operate continuously at all times with complete shift staff.

Circadian rhythm

circadian rhythmscircadiansleep-wake cycle
In medicine and epidemiology, shift work is considered a risk factor for some health problems in some individuals, as disruption to circadian rhythms may increase the probability of developing cardiovascular disease, cognitive impairment, diabetes, and obesity, among other conditions.
Shift work or chronic jet lag have profound consequences on circadian and metabolic events in the body.

Zopiclone

Imovane
Zopiclone has also been investigated as a potential treatment, but it is unclear if it is effective in increasing daytime sleep time in shift workers.
One low quality study found that zopiclone is ineffective in improving sleep quality or increasing sleep time in shift workers - more research in this area has been recommended.

Schedule (workplace)

rosterschedulescheduling
These practices and policies can include selecting an appropriate shift schedule or rota and using an employee scheduling software to maintain it, setting the length of shifts, managing overtime, increasing lighting levels, providing shift worker lifestyle training, retirement compensation based on salary in the last few years of employment (which can encourage excessive overtime among older workers who may be less able to obtain adequate sleep), or screening and hiring of new shift workers that assesses adaptability to a shift work schedule.
In shift work, a schedule usually employs a recurring shift plan.

Sleep hygiene

careful daily sleep practices
Good sleep hygiene is recommended.
Similarly, shift workers have difficulty maintaining a healthy sleep-wake schedule due to night or irregular work hours.

Sleep inertia

grogginessgroggy
They are: circadian phase, sleep inertia, acute sleep deprivation and chronic sleep deficit.

Jet lag

jetlagjet-lagjet lag syndrome
Military personnel, pilots, and others that regularly change time zones while performing shift work experience jet lag and consequently suffer sleep disorders.
Jet lag is a chronobiological problem, similar to issues often induced by shift work and the circadian rhythm sleep disorders.

Split shift

A split shift is a type of shift-work schedule where a person's work day is split into two or more parts.

Police

policingpolice forcepolice department
As most of these duties must be available as a 24/7 service, uniformed police are required to do shift work.

Firefighter

firefightersfiremanfiremen
In urban areas, this means that full-time paid firefighters usually have shift work, with some providing cover each night.

Sleep

sleepingsleep architectureasleep
Modern humans often find themselves desynchronized from their internal circadian clock, due to the requirements of work (especially night shifts), long-distance travel, and the influence of universal indoor lighting.

Occupational cancer

occupational carcinogen
Shift work, which can disturb the circadian rhythm, has also been identified as a risk factor for some forms of cancer, in particular for breast cancer.

Employment

employeeemployeremployees
Shift work is an employment practice designed to make use of, or provide service across, all 24 hours of the clock each day of the week (often abbreviated as 24/7).

Risk factor

risk factorsdeterminantsacute health hazard
In medicine and epidemiology, shift work is considered a risk factor for some health problems in some individuals, as disruption to circadian rhythms may increase the probability of developing cardiovascular disease, cognitive impairment, diabetes, and obesity, among other conditions.

Cardiovascular disease

heart diseasecardiac diseasecardiovascular
In medicine and epidemiology, shift work is considered a risk factor for some health problems in some individuals, as disruption to circadian rhythms may increase the probability of developing cardiovascular disease, cognitive impairment, diabetes, and obesity, among other conditions.

Diabetes

diabetes mellitusdiabeticdiabetics
In medicine and epidemiology, shift work is considered a risk factor for some health problems in some individuals, as disruption to circadian rhythms may increase the probability of developing cardiovascular disease, cognitive impairment, diabetes, and obesity, among other conditions.

Obesity

obesemorbidly obeseoverweight
Shift work also increases the risk of developing cluster headaches, heart attacks, fatigue, stress, sexual dysfunction, depression, dementia, obesity, metabolic disorders, gastrointestinal disorders, musculoskeletal disorders, and reproductive disorders. In medicine and epidemiology, shift work is considered a risk factor for some health problems in some individuals, as disruption to circadian rhythms may increase the probability of developing cardiovascular disease, cognitive impairment, diabetes, and obesity, among other conditions.