How does sleep affect the immune system?

The term fatigue describes being extremely tired, sleepy, exhausted or having a general lack of energy. “Being fatigued not only is a physical feeling, it can ... a busy schedule; lack of exercise; poor diet; poor sleep; too much caffeine; excessive alcohol use. other substance use. Fatigue can be a symptom of ... First things first, what do we even mean when we say “mental fatigue”? What is mental fatigue? Mental fatigue is the feeling that your brain just won't function ... 5 days ago ... 1. drained of strength and energy : fatigued often to the point of exhaustion 2. obviously worn by hard use : run-down 3. trite, hackneyed Nov 5, 2012 ... Young doctors: fewer hours means they're less tired, less prepared ... Orthopedic surgeons-in-training said they were tired less often after rules ... Apr 5, 2023 ... Strength doesn't mean you're not tired, it doesn't mean you're not in pain, not exhausted. It just means that you have the strength to keep ... 3 days ago ... in need of rest or sleep: I was so tired when I got home from work last night that I had a quick nap. My legs are tired. She spoke in a tired voice. Apr 25, 2024 ... What does “tired but wired” mean? The impact of high cortisol levels on your health & wellbeing; 4 signs you're tired but wired; How to ... Sep 25, 2021 ... If a player leaves a competitive match, the rest of his team gets a bonus 50HP to compensate. Mar 13, 2025 ... Being burned out means feeling empty and mentally exhausted ... Feeling tired can exacerbate burnout by causing you to think irrationally.