Back to Ask the Diabetes Team Ask the Diabetes Team

From Minneapolis, Minnesota, USA:

What is the lowest blood sugar limit for the brain not to be permanently damaged? Can the body always handle these by itself, if they are 'gentle'? I have recently read that these lows at night have been linked to children dying of heart failure due to the low blood sugar. What is the blood sugar limit for the heart to work as a muscle?


For obvious reasons the tolerable limits of blood glucose have not been tested in man; but a number of studies in laboratory animals have suggested that any sustained level below 20mg/dl will almost certainly produce permanent brain damage and that levels between 20 mg/dl and 40 mg/dl imply a considerable risk. The proper management of hypoglycemia is of course prevention and consists initially in developing a profile of blood sugars throughout the 24 hours, giving especial regard to the effects of stress, of exercise and dietary variation, something that the GlucoWatch will help with when it is available. Based upon this information and with the help of your diabetes team, it should be possible to plan a regimen for good control without risking serious hypoglycemia. You might even consider using a insulin pump with Humalog insulin as an additional protection.


Original posting 13 Dec 1999
Posted to Hypoglycemia


  Back to Ask the Diabetes Team Return to the Top of This Page

Last Updated: Tuesday April 06, 2010 15:09:06
This Internet site provides information of a general nature and is designed for educational purposes only. If you have any concerns about your own health or the health of your child, you should always consult with a physician or other health care professional.

This site is published by T-1 Today, Inc. (d/b/a Children with Diabetes), a 501c3 not-for-profit organization, which is responsible for its contents. Our mission is to provide education and support to families living with type 1 diabetes.
By using this site, you agree to our Terms of Use, Legal Notice, and Privacy Policy.
© Children with Diabetes, Inc. 1995-2018. Comments and Feedback.