Matthew Walker
speaker
842 appearances
2 recordings
2 series
first heard Jun 2025
last heard 26 Jun
Matthew Walker’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 Jun 2026 with 1.
Appearances
I think I'm really torn.
I've been on both sides of this argument and I'm cautious about it for two reasons.
The first is in pediatric populations here in the United States.
Yeah.
So the people's use of melatonin in kids is increasing.
So in pediatric populations, it's increasing exponentially.
And in fact, if you go down the sort of the supermarket aisles here in America, often if you go into sort of the health...
sort of food section.
There's this big purple section, that's the melatonin section.
And a large proportion of that is there dedicated to gummies for your children with melatonin.
And there was a study that was published about three years ago that showed here in America over the past 10 years,
there has been a 503% increase in poisonous overdose admissions to hospitals of melatonin in the past 10 years, 503% increase.
So firstly, we've got to be a bit careful.
The second reason is that melatonin is a bioactive hormone.
And it's also involved in reproductive development.
And there were studies done back in the 1970s, I think, where they were looking at juvenile male rats, which is to say male rats who were going through adolescence.
and they were dosing them with high amounts of melatonin.
And what they found is that that stunted the development of the testes, of the testicles, and it caused testicular atrophy.
Now, these were very high doses, but we've got to be a little bit careful.
We think, we say, well, melatonin's a natural hormone, so anything natural is safe.
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