Immune system more active during night

A latest research conducted by Stanford University reveals that the immune system is more active at night provided the person gets a good sleep.

Research was conducted with fruit flies. In the experiment, the researchers infected the flies with two different bacteria at different times of day and night. It was noticed that the fruit flies infected at night were more likely to survive than those infected during the day. 

The aim of the research was to find a link between innate immunity and circadian rhythm. It was found that the fruit flies sick with bacteria lost their circadian rhythm, which means that they were more susceptible to infection. Low "phagocytic" activity was found in the body's innate immune response -- in flies with a corrupt circadian clock.

The study reveals an important fact that the immune system fights invading bacteria the hardest at night and the least during the day.

"These results suggest that immunity is stronger at night, consistent with the hypothesis that circadian proteins upregulate restorative functions such as specific immune responses during sleep, when animals are not engaged in metabolically costly activities," Stanford researcher Mimi Shirasu-Hiza said in a news release issued by the conference organizers.

General: 

Popular Stories

Researchers record baby humpback whales 'whispering' to their mothers

Revealing a previously unknown survival technique... Read More

Waymo offering free rides to people in its self-driving minivans

Google Inc.’s self-driving car unit Waymo is... Read More

AT&T releasing updates for Galaxy S8, Galaxy S8 Plus

U.S. network provider AT&T is reportedly... Read More

Mobile phones can cause brain tumours: Italian court rules

In a landmark ruling, an Italian court has... Read More

Duluth to host ‘March for Science’ on Saturday

Duluth’s nonpartisan “March for Science” will be... Read More

Americans are more distressed than ever before: study

A new study has revealed that more Americans than... Read More