High blood glucose levels in the brain can make a person more anxious, irritable, angry, and unable to concentrate. These mood changes may improve when blood sugar levels return to normal.
5. Hunger and weight gain
Persistently high blood sugar makes weight loss difficult, a key factor in managing prediabetes. Insulin resistance makes it hard for cells to absorb glucose from the blood, leading to sugar buildup and increased hunger. As a result, the body stores excess sugar as fat.
6. Frequent urination and excessive thirst
When the body has excess glucose, the kidneys cannot reabsorb all the sugar and return it to the bloodstream. As a result, sugar leaves the body through urine, increasing the frequency of urination and causing excessive thirst.
