Why does lack of sleep make you more susceptible to illness?

Have you ever noticed that after a few nights of poor sleep, not only do you feel mentally drained, but you might also catch a cold more easily? This is actually related to your body's immune system. Sleep is a crucial time for your body to repair and regulate itself. When you're asleep, your body performs various physiological adjustments that help your immune system function properly. If you're chronically sleep-deprived, your immune function can be compromised, potentially reducing your body's defenses against viruses and bacteria. Lack of sleep can also lead to poor concentration, irritability, and even affect your memory. Adults are generally recommended to get 7 to 9 hours of sleep per night, though individual needs may vary slightly. If you've been feeling tired lately, don't just rely on coffee for a boost; pay attention to your sleep duration and quality. Sleeping isn't a waste of time; it's an essential process that allows your body to recover properly.