If a new car smell gives you a headache, the odor may be contributing, but riding in a moving vehicle...

If scented candles give you a headache, the trigger may be the fragrance, the burning process, or scent building up...

A headache after flying is often blamed on dehydration, but the timing of the pain can reveal much more about...

If you’re wondering why you get headaches in your house but feel better after leaving, the location and timing can...

A headache after driving at night can leave you wondering whether bright headlights, tired eyes, your vision, or something else...

If your head starts aching only after the white-noise machine has been running, the sound may be involved—but white noise...

If deodorant burns your armpits as soon as you put it on, the product itself may not be the only...

If cigarette smoke makes you nauseous even though you are not smoking, the reaction may come from fresh secondhand smoke,...

If an air freshener makes you nauseous or its smell repeatedly makes you feel sick, it does not automatically mean...

Why does wool make my skin itch when cotton and other fabrics feel comfortable? When the itching starts, how it...