Many people consume increasing amounts of sugar daily, leading to a continuous rise in blood glucose levels and increasing the risk of chronic diseases such as diabetes and heart disease.

Doctors closely monitor this phenomenon due to its potential effects on insulin function and overall body health, and the need to take early preventive steps to avoid chronic complications.

Type 2 diabetes occurs when the body fails to use insulin properly, causing sugar to accumulate in the blood, according to Mayo Clinic. Dr. Raj Dasgupta, Chief Medical Advisor at Sleepopolis, notes that: “High insulin levels do not cause immediate symptoms, making early detection difficult.”

The appearance of dark velvety patches on the skin, known as acanthosis nigricans, is one of the most prominent signs that may indicate high blood sugar levels. These patches often appear on the back of the neck, armpits, thighs, and under the breasts.

Dr. Samantha Brand, an obesity specialist, explains: “Persistent high insulin levels stimulate pigment and keratin-producing skin cells, increasing melanin and keratin production, leading to acanthosis nigricans.”

Doctors point out that genetic factors and some rare conditions may also cause these patches, but high insulin is the most common cause.

Prediabetes can often be reversed by adopting healthy lifestyle changes, including:

For those with type 2 diabetes, maintaining a healthy lifestyle is essential to manage symptoms and prevent complications.

Natasha Marsland, Chief Clinical Advisor at Diabetes UK, explains: “Remission means lowering blood sugar to a normal level for at least three months without glucose-lowering medications, leading to symptom cessation and limiting new damage.”

She added: “Recovery does not mean the disease is cured permanently, as sugar levels can rise again. Therefore, regular check-ups and medical follow-up are necessary.”