Our immune system is designed to protect us from colds, flu, and other ailments, but when it is not functioning properly, it fails to do its job. The consequences can include more sick days.

The relationship between lack of sleep and our immune systems is not quite as straightforward as mom made it out to be, however. The immune system is pretty complex. It is made up of several types of cells and proteins that are charged with keeping foreign invaders such as colds or flu at bay.

A lot of studies show our T-cells go down if we are sleep deprived .And inflammatory cytokines go up. … This could potentially lead to the greater risk of developing a cold or flu.

In simple terms, sleep deprivation suppresses immune system function. The more all-nighters you pull, the more likely you are to decrease your body’s ability to respond to colds or bacterial infections.

Lack of Sleep and Fevers

Sleep loss not only plays a role in whether we come down with a cold or flu. It also influences how we fight illnesses once we come down with them.

For example, our bodies fight infection with fevers. “One of the things that happens when we sleep is that we can get a better fever response, This is why fevers tend to rise at night. But if we are not sleeping, our fever reaction is not primed, so we may not be waging war on infection as best we can.

Lack of Sleep and Vaccines

Studies have shown that people who are sleep deprived also get less protection from flu vaccines than those who are getting adequate sleep.

Article Derived from WedMD