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Could your dishwasher be making your family allergic ?

Posted by Dr Sandy on in Bacteria | 349 Views | Leave a response

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A simple lifestyle strategy to decrease allergy risk

dirty plate

Handwashed dishes are “dirtier”. Don’t panic. They’re not a health risk – the extra bacteria can help seed your gut microbiome so you avoid allergic conditions

Allergies…… they’re on the rise.

A genetic predisposition, could mean your family is at risk.

You don’t want to have to have to deal, with a little one or two,  allergic to this, that or the other.

Since you can’t send in for a different set of genes, knowing which lifestyle factors protect and which ratchet up the risk, is helpful.

In search of allergy instigators

Motivated to help Moms & Dads, make lifestyle choices, a team of Swedish researchers decided to look at what families living in two “towns” in Sweden,  could teach others, about avoiding allergies.

To kick off their investigation, they tracked down, all the families with kids between the ages of 7-8 years old, living in Kiruna and Mölndal.

Each family was approached and asked to fill out a questionnaire……….

Was their little one allergic ?

What was life like, in their household ?

i.e. what did they eat, who all was living in the house etc.

1838 questionnaires were distributed, 1029 were returned and analysed.

For the record…………

Defining allergy

A child was considered “allergic” if they suffered from

  • Asthma
  • Eczema
  • Rhinoconjuctivitis e. red eyes and a runny nose, unrelated to a bout of “flu”

Quite a few kids were allergic……

The allergy patterns

Armed with this information, the team tried to see, if there were any differences between allergic versus non-allergic families.

To do this, they used fancy statistical analysis, to look for patterns.

Here is the PCA loading plot, they generated. It shows how the variables are related.

Eish !  It is rather complicated….

PCA plot showing relations between dish washing and allergy

PCA loading plot visualizing relationship between variables. Copyright © 2015 by the American Academy of Pediatrics

Variables located close together, in the same quadrant are positively correlated.  Variables located in diagonally opposed quadrants, are negatively correlated.

Here is the allergy variable, in the right upper quadrant.   The handdish  stands out as being negatively correlated !

Handdish, what was that all about ?

The handdish connection

One of the questions the team has asked participants,  was how they typically washed their dishes.

The team found….

When a family washed the dishes BY HAND, there was a lot less allergy.

eczema rates related to dishwashing

The difference was significant i.e. it’s a real difference, not something that happened by chance.  To put some numbers on it.  When they looked at eczema, the incidence of allergy in hand dishwashing families was 23 %, but it jumped to 38 % in families using a dishwashing machine.

Hand dishwashing so old fashioned

Now washing dishes by hand is not very fashionable in Sweden……..only 12 % of the families were doing it.

And you would be forgiven for thinking – what is wrong with these people ?  Who in their right mind, washes dishes by hand ?

It is a problem…………………

The researchers concede, hand dishwashing families might be different in other ways, ways that the survey was not able to “see”.  Although they did do their best to eliminate this potential “problem”.

But, it is what it is…………

Handwashing dishes, seems to protect little ones from becoming allergic.

Dirty dishes

It is actually not all that unexpected.

Now, there is no single cause or simple explanation for “being allergic”, but what is universally agreed upon, is that being “exposed” to bugs, specifically early on in life, does seem to be protective.

It’s thought, bored immune systems get up to mischief.

And handwashed dishes are “dirtier”

How clean is that dish ?

Don’t panic.  They’re not so full of germs, that they are  a potential health risk, but, they’re not quite as germ free as a dish that has spent time in a dishwasher.

tale of two dishes

You see, getting a dish clean depends on a couple of factors……….

  • How long the dish is cleaned for
  • How hot the water is
  • And the quality / type of detergent used

A dish in a dishwasher, gets all three at optimal levels.

A dish in the sink……….

Not always !

Dishing it out

Probably the biggest sticking point, is the temperature.

HOT WATER, burns bugs and HANDS.

Donning a pair of rubber gloves allows for hotter water and less wrinklies…..thank goodness !

But a hand washed dish, is unlikely to be sterile……. it’s never exposed to high enough temperatures.

Cultivate microflora

Who is who in your gut zoo, matters – a decrease in bacterial diversity is associated with health troubles.   Now, there lots of strategies that can be used to cultivate your microflora, some more do-able than others.                       

Washing your dishes the old fashioned way.

It’s a lifestyle choice that can be applied by most people……….and it might just help create BETTER BODY CHEMISTRY and BETTER HEALTH.

Allergy in Children in Hand Versus Machine Dishwashing.  Pediatrics (2015) 135(3): e590-e597.  Bill Hesselmar, Anna Hicke-Roberts, Göran Wennergren.

Further reading

baby in tub

Are today’s kids too clean for their own good ?

Rub a dub dub – your kid is SPARKLING CLEAN. Too clean ? Maybe. The SPARKLING CLEAN kids are full of cleaning chemicals and allergies.

moms germs riding in on dummy

A squeaky clean dummy is not what your baby REALLY needs 

Parents who clean their child’s dummy by sucking it, are three times less likely to suffer from eczema. It’s a germ thing…..

the dish ran away with spoon

Why did the dish run away with the spoon ?

Scientists believe the magic happened because, in the moonlight the spoon took on a different colour, making it more attractive.

 

Want to discover more ways to create BETTER BODY CHEMISTRY ?

Posted in Bacteria | Tagged allergy, asthma, cutlery, dish, eczema, gut, hands, microbiome, soap, temperature, washing

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