Why Insulin Resistance Causes Acne

Insulin resistance causes acne by triggering a hormonal cascade that increases sebum production, accelerates skin cell turnover, and promotes chronic…
What Causes Acne in People With PCOS

Acne in people with polycystic ovary syndrome stems primarily from excess androgens — male hormones like testosterone and DHEA-S that are produced at…
What Is Late-Onset Acne in Women Over 40

Late-onset acne in women over 40 is adult acne that appears for the first time — or reappears after years of clear skin — during perimenopause and beyond,…
Why Postmenopausal Women Suddenly Get Acne

Postmenopausal women suddenly get acne primarily because of a sharp drop in estrogen while androgen levels remain relatively stable or decline more slowly.
What Causes Acne in Women Going Through Perimenopause

Perimenopausal acne in women is primarily caused by shifting hormone levels — specifically, declining estrogen paired with relatively stable or even…
Why Hard Water Might Be Breaking You Out

Hard water is almost certainly making your acne worse, and you may not even realize it. When calcium and magnesium ions in your tap water mix with soap,…
What Causes Acne After Flying on a Plane

Flying on a plane causes acne primarily because of the extremely low humidity inside aircraft cabins, which typically hovers around 10 to 20 percent — far…
Why Moving to a New City Triggered Your Acne

Moving to a new city triggered your acne because your skin is reacting to a cocktail of environmental shifts all hitting at once — different water…
What Causes Acne Flares in Summer Heat

Summer acne flares are driven by a straightforward biological chain reaction: rising temperatures and humidity push your sebaceous glands into overdrive,…
Why Your Acne Gets Worse in Winter

Your acne gets worse in winter primarily because cold, dry air strips moisture from your skin, triggering an overproduction of sebum as your body…