Diseases and Conditions

When Skin Changes Deserve Medical AttentionSmall skin growths are something most people notice at some point. These soft, flesh-colored bumps hanging from the skin's [...]

The Hidden Threat Above UsSunlight feels benign. It brightens moods, warms skin, and signals the start of a good day. The part you cannot see, however, works against skin [...]

Spotting the Difference Between Sun Spots and FrecklesThose little brown marks on the skin confuse a lot of people. Both involve excess pigment in the skin, but they arise [...]

What Is Psychotic DepressionPsychotic depression, formally called major depressive disorder with psychotic features, is a subtype of major depression in which depressive [...]

Understanding the Relationship Between Acne and UV ExposurePeople with acne face a frustrating double bind. The treatments that clear breakouts often make skin more [...]

What Makes a Mole "Intradermal"Most adults have between 10 and 40 moles, and not all are the same type. An intradermal nevus forms when melanocytes, the [...]

What Anxiety Looks Like From the OutsideWhen someone you care about is struggling with anxiety disorders, you may not immediately recognize it. Knowing whether everyday worry [...]

Why People Assume Eczema SpreadsWhen eczema flares, the skin can look alarming. Red, weeping, crusted patches on the arms, neck, or face may resemble infectious conditions [...]

What Skin Texture Actually MeansRun your fingertip across your cheek. If it catches on anything, if the surface feels uneven or rough rather than uniformly smooth, that is [...]

Why Bending Loads the Knee DifferentlyThe knee is a hinge joint, but it functions under considerable compressive force the moment flexion begins. At full extension, the [...]