Theresa (Teresa) McPhail
speaker
104 appearances
1 recordings
1 series
first heard Jul 2026
last heard 17 Jul
Theresa (Teresa) McPhail’s voice in public audio — every appearance, attributed to the second.
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recordings per month · last 12 monthsRecordings per month over the last 12 months — 1 in all, peaking in Jul 2026 with 1.
Appearances
And so a lot of people are out there self-diagnosing.
We think as far as we can tell that they are rising, but it's complicated.
We know that rates of asthma and hay fever started to rise post-World War II, like 1950s, 1960s, and continued right up until the 1990s.
And now they seem to have been flattened.
But what has been rising in the wake of that are rates of food allergies.
We know this because of several reasons.
One is you can look at ER visits.
You can see when someone is showing up with asthma or with a rash, like a very bad eczema eruption, or they are having anaphylaxis.
The other thing that we can track is EpiPen or adrenaline prescriptions.
Those raised three to four times from the 1990s to around 2018, 2019.
Right.
So in the 1980s, this is after the massive rise of asthma, we're starting to see food allergies.
An epidemiologist was curious about this and started collecting data on families and realized that older siblings seem to have more allergic disease than younger siblings.
The theory was that older siblings bring home colds and track in bugs to expose their younger siblings.
And there was something about that earlier exposure that had somehow protected these younger siblings.
It was called the hygiene hypothesis.
That has morphed over the years to what is now called the old friends hypothesis.
Mm-hmm.
which is nice, isn't it?
That's a nicer way to put it.
Showing 41–60 of 104 · page 3 of 6
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