Many people find that their roots become flatter, shinier or visibly oily much sooner in summer. It is tempting to conclude that heat simply makes the scalp produce more oil. The biology is more nuanced....

We routinely change how we care for our skin during summer. We use sun protection, choose lighter products and adapt our routines to heat and humidity. Yet the scalp, which is also skin, is often...

The scalp is often missed during sun protection. Dense hair provides some shade, but it is not a reliable substitute for a hat, shade or sunscreen. The parting, hairline, ears and areas of thinning or...

Pool and sea water can leave hair rough, tangled or difficult to style, while the scalp may feel coated after repeated exposure to chlorine, salt, sunscreen and perspiration. The scalp is living skin; the visible...

A useful summer scalp routine should respond to what the scalp has actually encountered. A day in an air-conditioned office does not require the same care as a run in hot weather, an afternoon at...

Scalp sweating is a normal response to heat. The scalp contains many eccrine sweat glands, which release a dilute, salty fluid when body temperature rises through warm weather, exercise or both. As that fluid evaporates,...