Dark, velvety skin patches—known as acanthosis nigricans—can be an early warning sign of insulin resistance, prediabetes, or ...

The skin serves as the body’s largest organ and often provides the earliest clues about internal health problems. When blood sugar levels begin fluctuating abnormally, the skin frequently responds ...

Dark spots, stubborn patches, uneven tone — hyperpigmentation shows up in many ways and for just as many reasons. If you’ve ever wondered why some areas of your skin seem to darken out of nowhere (or ...