Research of the Week
MDMA trial finds it’s 76% effective at treating PTSD. Full
FDA approval expected by 2021.
As many as
500,000 years ago, Arabia was green, and hominids were living
and traveling through there.
Increased frequency of global travel may actually reduce
the danger of global pandemics.
Victoria Field: Host Elle Russ chats with Victoria Field, a
world-renowned expert in high-performance
and cancer-centered keto nutrition for people and dogs.
Each week, select Mark’s Daily Apple blog posts are prepared
as Primal Blueprint Podcasts. Need to catch up on reading, but
don’t have the time? Prefer to listen to articles while on the
go? Check out the new blog post podcasts below, and subscribe to
the Primal Blueprint Podcast
here so you never miss an episode.
New surgery students haven’t the manual
dexterity necessary to succeed.
Reader Question of the Week
This article hit home for me as I’m 57 and living with a slightly
enlarged prostate. One of my favourite activities is getting out on
my road bike for a good 50 to 75 km ride. I’m wondering if you
would know if that is aggravating my prostate? I’ve read so many
conflicting reports I’m hoping you may have some insight. Thanks
There may be short-term increases in prostate stress. In men 50
or over, a long bike ride (55-160 km) transiently
increases PSA levels by an average of 9.5% when measured 5
minutes post-riding. The longer the ride and the older the rider,
the larger the increase. In a sample of 129 riders, just two men
had elevated PSA levels before the ride. After the ride, six men
had elevated PSA levels. All told, it isn’t very significant, and
the authors suggest 48 hours is enough for PSA to return to
But there probably isn’t any chronic effect. A 2015 meta-analysis of
the available research suggested “that there is no effect of
cycling on PSA.”
observational studies have found road cycling to be linked to
increased genital numbness, urethral stricture (where the urethra
is blocked or obstructed), but not to any actual sexual problems or
impaired urinary function. Oddly enough, cycling-related numbness
of the butt was linked to worse sexual function. Padded seats,
raising the handlebars to be even with the seat, and using padded
shorts seem to improve the symptoms.
I wouldn’t worry. Exercise itself is good for prostate health,
as I explained in the prostate
post a couple weeks ago. So my gut feeling is that cycling is
probably a net plus for the prostate.
Interesting Blog Posts
Paleobiologists attempt to debunk the paleo diet, fail miserably.
arthritis (or the lack thereof).
Halloween has passed, but these NomNomPaleo Halloweenies we made
are a great way to get kids involved in the cooking (and eating)
fetches hefty price.
Why did thousands of usually-solitary deep sea octopuses
gather in the waters outside of Monterey?
I’d vote for him based off
Things I’m Up to and Interested In
I wouldn’t be surprised if it was causal:
More screen time, less psychological well-being (among
You know what they say: “Lie
with Neanderthals, wake up with HPV.”
Article I’m loving: “Why Forests Give
Result you might not have expected: Those who are struggling
benefit more from
giving advice than receiving it.
Miscellaneous topic I enjoyed:
The smell artist.
Question I’m Asking
Will AI-created art—paintings, books, music, etc—ever
replace or surpass human art? Or will “something” always be
One year ago (Oct 28– Nov 3)
Bag Redo—Kids Edition – How and what to make your kids for
7 Subjective Longevity Markers to Track (and Fix) – Live
longer, live better.
Comment of the Week
“Imagine if our ancestors had internet news and smart phones.
All day long, they’d be getting alerts. ‘Ging of Siberia was
mauled by a polar bear.’ ‘Huge attack by Comanches kills 100s.
Slaves captured.’ ‘Viking ruler overthrown by brother.
Bloodiest battle in Katagut.’ ‘Child goes missing in the bush.
Feared eaten by dingos.’ ‘Mayan leader Xocolatte accused of
once throwing a cup of coffee at ex-girlfriend.’ ”
imagines if our ancestors had access to the global news cycle.