According to International Classifications of Sleep Disorders, shift work sleep disorder is a circadian rhythm sleep disorder due to unusual sleep patterns caused by changing work schedules. People with SWSD often characterized by insomnia, and excessive sleepiness during work hours. This disorder usually occurs in people with non-traditional work hours i.e. split shift, graveyard shift, rotating shifts.
Each of us has an internal clock that sends a signal to our body to eat, sleep or even have sex. Many of our body's systems are calibrated to the appearance and disappearance of the natural light. Whenever the optic nerve senses light, there’s a tiny region of the brain in the hypothalamus called SCN (suprachiasmatic nucleus) which sends the signal to raise our temperature, heart rate, blood pressure, and delay the release of melatonin - a hormone that regulates sleep. When our internal clock misaligns with the work or social schedule, it disrupts the usual pattern or the circadian rhythm resulting in different sleep disorders.
People with SWSD are more likely to sleep fewer than 6 hours during workdays. According to the Cleveland Clinic, 25-30% of shift workers experience symptoms of the disorder such as excessive sleepiness or insomnia. Having less sleep affects their daily tasks such as driving.
Johns Hopkins Center for Sleep at Howard County General Hospital
We all need to be touched. Our need for physical contact is manifested since birth. As babies, we cry, suckle, and cling to our parents or caregivers. These attachment behaviors promote physical closeness, and we might be reaping the benefits without us knowing.
Cuddling for about 10 minutes releases a hormone called oxytocin or the “love hormone” while inhibiting cortisol aka "the stress hormone". It relieves pain, boosts your immune system, and eases stress or tension. Cuddling before bedtime is even greater because it helps you fall asleep.
Lack of sleep affects the immune system. People who slept 6 hours or less were 4 times more likely to catch a cold compared to those who have an average of 7 hours or more of sleep. Major benefits your immune system gets with enough sleep include the following:
Increased immune function, reduced risk to colds and flu, fight infection and illnesses, help recover from diseases, and beats mental disorders.