When the outdoor temperature is low, the absolute humidity is low because cold air holds less water. When the heat is turned up indoors the relative humidity decreases and during days with cold weather it can fall below 10%. This can lead to cracked skin or lips because, I assume, dry air draws more water from the skin. So my question is, can skin acclimatize? Around here in New York, some people get cracked knuckles every winter or use moisturizer to prevent them (I use nasal saline for nosebleed prevention). If those people lived in dry climates would they have this all year around? Or does the skin (and nose) eventually acclimatize?
If I install a large humidifier in my home could that actually have adverse effects by preventing me from acclimatizing (that is, making my nose less naturally lubricated), thereby possibly causing problems when I enter other houses or buildings?