Dehydration can also distort your vision. High blood sugar can damage the tiny blood vessels in your eyes. It can also lead to cataracts and glaucoma. If you suddenly experience vision problems (blurred vision, for example), it may be a warning sign from your body.
Slow Healing
Arteries play a major role in the circulatory system by carrying blood pumped by the heart to the rest of the body. However, when glucose levels are high, the arteries stiffen, causing narrowing or blockage of the blood vessels, leading to decreased blood circulation. With decreased blood flow, the body’s ability to get oxygen and nutrients to the wounded area is also reduced. The wound will then heal slowly.
Irritability
High glucose levels lead to irritability, anxiety, and depression. People with this condition are therefore prone to frequent mood swings. According to research by neuroscientist Jordan Gaines Lewis, when we ingest sugar, it activates taste receptors located on the tongue. These send signals to the brain to activate the reward system and release hormones like dopamine. But sugar quickly takes control of this reward system, and you sometimes find yourself with uncontrollable cravings, which can cause various mood swings and even lead to depression.
Migraines
Poor glucose absorption can also lead to migraines. Insufficient energy for brain cells causes headaches.
Acne
People with diabetes who take insulin may experience a hormonal imbalance that leads to acne and rosacea.