How sleep can improve your immunity | Sleeping with Science, a TED series

TL;DR

This content explores the connection between sleep and immune health, emphasizing the importance of sufficient sleep for a strong immune system.

Transcript

Transcriber: TED Translators admin Reviewer: Ivana Korom Often when we're sick typically what we want to do is just curl up in bed and go to sleep. And in part what we're trying to do is sleep ourselves well, because there's a very intimate association between our sleep health and our immune health. [Sleeping with Science] We know that individuals ... Read More

Key Insights

• 💤 Lack of sleep can increase the risk of infection by the rhinovirus (common cold) and pneumonia, especially in women sleeping less than five hours a night.
• 💉 Getting sufficient sleep before receiving a flu shot is crucial for an effective immune response. Those who slept only four hours a night had less than 50% of the normal antibody response after vaccination.
• 😴 Adequate sleep, including deep non-REM sleep, is essential for replenishing the immune system by stimulating the production of immune factors and increasing sensitivity to them.
• 🔬 Sleep plays a crucial role in the association between sleep health and immune health.
• 💪 Sufficient sleep can make you a more resilient and robust individual with a stronger immune system.
• 🛏️ Sleep can be seen as a vital health insurance policy for boosting immune function.
• 🤧 Lack of sleep is linked to an increased likelihood of getting sick, making sleep an important component in staying healthy.
• 🌙 Sleep serves as a time for the body to restock its immune arsenal and optimize immune function.

Questions & Answers

Q: What is the association between sleep health and immune health?

There is a strong association between sleep health and immune health. People who report less than seven hours of sleep a night are almost three times more likely to become infected by the common cold, while women sleeping five hours or less a night are almost 70 percent more likely to develop pneumonia.

Q: How does sleep affect immunization?

Lack of sleep can significantly impact the effectiveness of immunization. In a study, individuals who were limited to only four hours of sleep a night for six nights produced less than 50 percent of the normal antibody response after receiving a flu shot. Insufficient sleep before getting vaccinated can render the vaccination far less effective.

Q: What happens during sleep that boosts the immune system?

During sleep, especially deep non-REM sleep, the body restocks the weaponry within the immune system and stimulates the production of various immune factors. Additionally, the body becomes more sensitive to these immune factors, making individuals wake up the next day with a more robust immune system.

Q: How should sleep be perceived in relation to the immune system?

Sleep should be seen as one of the best health insurance policies for the immune system. It plays a vital role in maintaining immune health and strengthening the body's ability to fight off infections and diseases. Prioritizing sufficient sleep can significantly improve immune function and overall health.

Summary & Key Takeaways

• Lack of sufficient sleep can increase the risk of infection by the common cold and pneumonia.

• Limited sleep prior to receiving a flu shot can lead to a significantly reduced antibody response to the vaccination.

• Sleep plays a crucial role in restocking the immune system and enhancing the production and sensitivity of immune factors, making it an important aspect of maintaining overall immune health.