I'm of the opinion that over-cleanliness is as bad as, if not worse
than, under-cleanliness at a germ level. If your immune system is not
trained to the local strains of E. coli or salmonella, when you come in
contact with a few bacteria on the salad in a chic restaurant or
elsewhere, you will get the full benefit of a day or two enthroned.
Merde alors! You must have exposure to bugs to be healthy.
I remember reading about an experiment during the Viet Nam war. A
non-combatant unit was split into two equal groups of volunteers, one of
which could shower as often as they liked, minimum daily, the other half
could shower once every third day. The troops had to report every health
abnormality, even minor, as well as those on sick parade. The "dirty"
lot reported far fewer bo-bos and serious problems than the "clean" lot
(can't remember the statistics, but they were quite significant). After
a few weeks, the "dirty" lot no longer exhibited undue BO, either,
showing that the skin flora causing fermentation in/around the sweat
glands do not have a chance to be eliminated naturally with frequent
washing. This was confirmed in the UK army: some units in hot climates
had shower facilities once a week and BO was not a general problem
(there were a few odd bods who were smelly from "nervous sweat", as
opposed to honest-to-goodness hard labour sweat).
I think there is probably an optimum balance which may vary between
individuals, but there is a tendency to go OTT with personal hygiene.
Brian
Ken Bloomquist wrote:
> Hi Karen,
>
> You wrote: "I've always found hand sanitizer superfluous, just washing ones
> hands with soap and water kills most germs."
>
> I agree that in the work environment you are probably correct but I think
> that hand sanitizers with at least 60% alcohol are good when you are out in
> public and can't readily wash your hands. I usually keep a small bottle in
> my car and an even smaller one in my pocket.
>
> KennyB
> -----Original Message-----
> From: Karen Tellefsen [mailto:[log in to unmask]]
> Sent: Monday, April 27, 2009 6:43 AM
> To: [log in to unmask]
> Subject: Re: [TN] Hand Sanitizer and PCB Assembly
>
> Purell:
>
> Ingredients:
> Active Ingredients: Contains: Ethyl Alcohol (62%)
>
> Inactive Ingredients: Water, Glycerin, Isopropyl Myristate, Propylene
> Glycol, Tocopheryl Acetate, Aminomethyl Propanol, Carbomer, Fragrance
> (parfum)
>
>
> The glycerin and propylene glycol would concern me, they're both
> hydrophillic. The ethanol in the active ingredient, maybe a mixture of
> 60% ethanol 35% water 5% isopropanol ( to make it undrinkable, but safe
> enough for topical use) would be better around circuit boards. It would
> tend to dry the users' hands, but would not help to contaminate circuit
> boards.
>
> I've always found hand sanitizer superfluous, just washing ones hands with
> soap and water kills most germs.
>
>
> Karen Tellefsen - Electrical Testing
> [log in to unmask]
> 908-791-3069
>
>
>
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