A good night’s sleep isn’t just about feeling fresh — it’s your body’s natural defense booster. When you sleep, your immune system releases proteins called cytokines, which help fight infection and inflammation. Lack of sleep reduces these protective proteins, making you more prone to colds, flu, and other illnesses.
Getting 7–8 hours of quality sleep helps your body recover, repair tissues, and produce the antibodies needed to defend against harmful bacteria and viruses. So, next time you think of staying up late, remember — every extra hour of rest is a gift to your immune system.
❓3 Questions (Pass/Quiz)
- What are cytokines and how do they help your body?
- How many hours of sleep are generally needed for a healthy immune system?
- What happens to your body if you sleep less than required?