True or False?

If you are allergic to dust, you will automatically be allergic to dust mites.

The Correct Answer is FALSE -- An allergy to dust doesn't necessarily imply an allergy to dust mites.

Much like the bear and the teddy bear, dust and dust mites have little in common except a name and a few spare body parts.

Dust mites are actually living creatures. A diminutive relative of spiders and ticks, they are invisible to the naked eye. They live in bedding, carpets, stuffed animals, and similar cushy surfaces. Thankfully, they don't live on people, only near them. A gross fact: they actually feed on the dead skin particles shed by human bodies, and they thrive in humid environments. An even grosser fact: these nasty habits make them love your bedding.

Now, it is not actually the dust mites themselves which cause allergic symptoms. Because they are alive, they are difficult to inhale. Instead, it is dust mite waste particles and fragments of dead dust mites which cause allergies.

Which brings us to dust – another common allergen. Dust is a conglomerate of many kinds of miniscule particles: human skin flakes, cloth and fabric fibers, animal dander, cockroach allergens, mold spores, construction and industrial byproducts, and bits of dirt and debris. And, present in this mixture is usually a fair amount of dust mite allergens.

So, if you're allergic to dust mites, you're probably going to be allergic to dust, as well. But an allergy to dust doesn't necessarily imply an allergy to dust mites, as there are lots of other troublesome particles in dust which could be causing your symptoms.