Poor Sleep Changes Your Fat Cells!

Think about the last time you had a bad night of sleep. How did you feel when you woke up? Exhausted. Dazed. Confused. Maybe even a little grumpy? It’s not just your brain and body that feel that way—your fat cells do too. When your body is sleep deprived, it suffers from “metabolic grogginess.” The term was coined by University of Chicago researchers who analyzed what happened after just four days of poor sleep—something that commonly happens during a busy week. One late night at work leads to two late nights at home, and next thing you know, you’re in sleep debt.

But it’s just four nights, so how bad could it be? You might be able to cope just fine. After all, coffee does wonders. But the hormones that control your fat cells don’t feel the same way.

Within just four days of sleep deprivation, your body’s ability to properly use insulin (the master storage hormone) becomes completely disrupted. In fact, the University of Chicago researchers found that insulin sensitivity dropped by more than 30 percent.

Here's why that's bad: When your insulin is functioning well, fat cells remove fatty acids and lipids from your blood stream and prevent storage. When you become more insulin resistant, fats (lipids) circulate in your blood and pump out more insulin. Eventually this excess insulin ends up storing fat in all the wrong places, such as tissues like your liver. And this is exactly how you become fat and suffer from diseases like diabetes.