What Happens to Your Body When You Don't Get Enough Sleep?
Wondering how your body copes with a lack of sleep? Read more to find out and pick up tips for a better night's sleep from a Virtua Health pulmonologist.
Abhishek D. Agarwal, MD, pulmonologist, Virtua Pulmonology & Sleep Medicine
We all know the feeling: you stayed up late scrolling on your phone or working on a deadline, and the next day feels like a foggy slog. But sleep isn’t just about avoiding tired eyes or morning grumpiness, it’s essential for your whole body to work its best.
During sleep, your body is anything but “off.” It’s busy repairing tissues, boosting your immune defenses, processing memories, and balancing hormones. Skipping on sleep means these crucial jobs don’t get done and your body starts sending warning signs.
What Happens When You Don’t Get Enough Sleep?
1. Your Brain Slows Down
Lack of sleep affects concentration, memory, and decision-making. Ever walked into a room and forgotten why? That’s your sleep-deprived brain in action.
2. Your Mood Takes a Hit
Sleep deprivation can make you irritable, anxious, or overwhelmed. It’s harder to regulate emotions, so patience might run thin.
3. Your Immune System Weakens
Without enough sleep, your body’s ability to fight off infections decreases. That cold or flu might hit harder or last longer.
4. Your Appetite Goes Haywire
Sleep affects hormones that control hunger and fullness. When you don’t sleep enough, you might crave unhealthy snacks and overeat, which can lead to weight gain.
5. Your Heart Works Overtime
Chronic poor sleep raises your risk for high blood pressure, heart disease, and stroke. Your heart needs rest too!
6. Your Skin Shows It
Sleep helps your skin repair and regenerate. Too little rest can cause dullness, dark circles, and puffiness.
How Much Sleep Do You Need?
Most adults need 7 to 9 hours of quality sleep per night to feel and function their best. Kids and teens need even more for healthy growth and development.
Tips for Better Sleep Tonight
- Stick to a consistent sleep schedule even on weekends.
- Make your bedroom cool, quiet, and dark.
- Limit screen time at least an hour before bed because blue light tricks your brain into staying awake.
- Avoid caffeine and heavy meals close to bedtime.
- Relax before bed with calming activities like reading or gentle stretches.
Trouble Sleeping? We Can Help!
If you struggle to fall asleep or feel tired throughout the day, Virtua Health’s sleep specialists are here to help diagnose and treat sleep disorders. Getting good sleep is key to a healthier, happier you.
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