Heat distribution unit. The Heat Distribution Unit (HDU), also known as a Heat Interface Unit (HIU), provides domestic hot water (DHW) and space heating to properties that are serviced from district heating or centralised boiler plants.
Called hypoglycemia, this deficiency of glucose in the blood is considered critical at, or below, 40 milligrams of glucose per deciliter of blood, or 40 mg/dL. However, this figure must be adjusted individually, as the exact level at which an a person develops symptoms varies.
The glycemic index, or GI, is a scoring system for foods containing carbohydrates. High-GI foods, with a score high than 70, cause your blood sugar to spike quickly. Medium-glycemic foods rank at 55 to 70 on the scale and have modest effects on blood sugar. Ideally, the majority of the foods you eat should be low on the glycemic index and have a rate of less than 55.