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Can washing hands too often weaken the immune system? [duplicate]

A coworker told me today that washing your hands too often, especially as a child, can result in a weakened immune system, because you aren't giving your body the chance to build up immunities. He ...
mgarey's user avatar
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15 votes
2 answers
5k views

Does living clean weaken ones immune system?

In many places I have heard that living too clean weakens your immune system. For example, a Daily Mail article says: Evidence is growing that dirt and germs can protect against disease - and that ...
Tanmoy's user avatar
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41 votes
2 answers
5k views

Do hand sanitizers have a negative impact on the human immune system?

Related: Which is more effective at removing germs, washing with soap and water or using hand sanitizers? Does regular handwashing with antibacterial soap prevent disease? I've run across some ...
Hendy's user avatar
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