Insufficient Sleep Impairs Frontal Lobe (image) University of California - Berkeley Share Print E-Mail Caption Study shows that a sleepless night boosts anxiety levels up to 30%. Credit Graphic by Eti Ben Simon and Matthew Walker. Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.