"Cleanup" redirects here. For the Wikipedia term, see Cleanup.

Cleanliness is the absence of dirt, including dust, stains and bad smells. In more recent times, since the germ theory of disease, it has also come to mean an absence of germs and other hazardous materials. A recent shift has now taken place to recognise that ‘dirt’ may play a useful role in our immune systems. This shift in thinking can be traced back to 1989, when David Strachan put forth the "hygiene hypothesis" in the British Medicine Journal. Strachan looked at the records of 17,000 British children and found that the greater number of older siblings they had, the less likely they were to come down with hay fever—a disease which, despite its name, is far more common in the city than the country. Strachan wondered if the older children were bringing home more viral infections to their younger siblings, priming their immune systems so they could better tolerate pollen. The "hygiene hypothesis" has now been linked with asthma, allergies, intestinal diseases including Crohns disease, childhood leukaemia and atopic dermatitis and the list is growing. It can apply to humans, animals, clothing, eating utensils, plates, pans, cups, etc., food, other movable objects, floors, windows, walls, toilets, etc.

"Cleanliness is next to Godliness," a common phrase, describes humanity's high opinion of being clean.

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Cleaning - Twitter Search

home cleaning my room
Juniormaster001 (Alberto Marriaga Jr.) Mon, 21 Dec 2009 21:57:52 -0000
home cleaning my room
@jeditrace urgh cleaning the bain of my life :( I think your little girlie looked cute nothing wrong with being a band geek :)
Spacecable (Caroline Fletcher) Mon, 21 Dec 2009 21:14:28 -0000
@jeditrace urgh cleaning the bain of my life :( I think your little girlie looked cute nothing wrong with being a band geek :)
@kirstydee_x Awww, what happened to cleaning?? :P x
lauradee_x (Laura Dow) Mon, 21 Dec 2009 21:04:46 -0000
@kirstydee_x Awww, what happened to cleaning?? :P x
cleaning up this messy ass room ! text/call !
lavettajay (jasmine lavetta) Mon, 21 Dec 2009 21:03:31 -0000
cleaning up this messy ass room ! text/call !
Cleaning and watching the proposal.......still haven't made my list but pretty sure cleaning is on it
sherlockhughes (Leigh Hughes) Mon, 21 Dec 2009 20:51:05 -0000
Cleaning and watching the proposal.......still haven't made my list but pretty sure cleaning is on it
Hmmm, I'm trying to come up with how I'm gonna approach this whole cleaning all my brother's damn dishes in the kitchen. I don't wanna. >.<
Mikey_Mausoleum (Michaela White) Mon, 21 Dec 2009 20:49:50 -0000
Hmmm, I'm trying to come up with how I'm gonna approach this whole cleaning all my brother's damn dishes in the kitchen. I don't wanna. >.<

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