Lack of Sleep Leads to Decreased Immunity!

Are you getting enough good sleep? Do you find yourself feeling light-headed during the day, feeling like you catch colds more easily, or feeling pale when you wake up in the morning? In fact, this may be due to lack of sleep or shallow sleep. Sleep helps to recover from mental and physical fatigue. Sleep also plays a role in consolidating memory and strengthening the immune system. Get a good night’s sleep for a healthy body and mind, and of course, shiny skin.

Sleep is important to prevent influenza and colds

Sleep is said to be good for beauty, but it has recently been discovered that it is also important for immunity. A study examining the relationship between sleep duration and IgA in saliva found that the amount of IgA secreted in saliva decreased the shorter the sleep duration, which was 6 hours or less (Note 1).
Focusing on the relationship between sleep quality and immunity, the study found that people with better sleep quality were less likely to catch a cold. (Graph) Research has also shown that people who sleep less than 7 hours are about 3 times more likely to catch a cold than those who sleep more than 8 hours. Some studies have reported that T cells, one of the immune cells, need sleep in order to memorize information on pathogens for a long period of time. (Note 2) You can see that good sleep and immunity are greatly related.

Note 1:Behavioral Medicine Research 15.No1

Note 2:Trends Neurosci. 2015;38:585-97

After assessing the quality of sleep of 153 healthy men and women aged 21-55 years by asking them about their sleep duration and rest for 14 days, and then administering cold virus into their noses and looking at the incidence of colds, the study found that those with better sleep quality had a lower incidence of colds.

(Data: Arch InternMed. 2009;12;169,1:62-7)

Revived while you sleep!

The autonomic nervous system is a nerve that works around the clock to regulate the workings of internal organs, metabolism, respiration, and body temperature. There are two types of autonomic nerves: the sympathetic, which is active during the daytime when the body is active or tense, and the parasympathetic, which is active at night when the body is asleep or relaxed. The parasympathetic nervous system restores the body, enhances the function of internal organs, and normalizes the immune system. Relax at night and get a good night’s sleep.