The Anti-Fountain of Youth Protein: Methionine

Tuna is still one of the most healthful sources of protein, but...

Bottom line: a 40% decrease in calorie consumption over the adult life of an animal has been confirmed for decades to dramatically increase the healthy lifespan of the animal.  And now, researchers are finding that animals eating a normal amount of calories each day but decreasing protein (or, specifically, methionine) intake by 40% over the animal's life has similarly dramatic anti-aging effects.

There's one specific building block of protein that's the main culprit in causing cell damage and aging: methionine.  It's in all the most common protein-laden foods we like to eat, from eggs to beef or chicken to vegan options like tofu and algae.  (But keep in mind some foods have proteins with more of the methionine building block than other foods.)

Here's a useful, extensive listing of all the most common...and not so common (it might not be such a struggle to decrease your Beluga whale or free-range elk consumption!) foods with the highest amount of the methionine protein per serving.

Even the healthy egg should be eaten in moderation.

Ummm yeah, so the amino acid methionine seems to be completely unavoidable!  So we all need protein to live, and no matter which food our protein source is, it seems we're going to end up eating methionine in the food.  So, why would I even bother to tell you this?

Well, luckily scientists found in their studies that there were huge reductions in the amount of aging-type cellular damage found in the animals with just a 40% decrease in methionine intake.  That's great news!  Forty percent is a completely reasonable decrease that still lets us get our basic protein needs met.

Replace a few meaty dishes each week with a hearty veggie alternative and you're well on your way to drastically decreasing how much methionine you eat.

By the way, this research is an exciting extension on the decades of laboratory research on "dietary restriction" (DR) or "caloric restriction" (CR) in creatures varying in complexity from yeast to mice to monkeys.  Piles of research agreed that these DR or CR diets in which the number of calories was decreased by some signification portion (often around 40%) succeeded in increasing high-quality lifespan dramatically in all these creatures.  This result has been one of the best and most universally supported research findings in medicine.

Only recently have the researchers been studying each part of the diet one at a time...and that's when they found this gold mine result that the protein intake--specifically, the methionine intake--was the main factor that caused this increase in lifespan.

Immune Conditioning: How to Get a Drug Response Without Taking the Drug

Sherbert instead of pills?  Count me in!

I learned about immune conditioning today and boy did it blow me away!  I was reading The Healing Mind that the body is physically able to have a drug response without actually getting the drug.  Immune conditioning research was motivated by patients taking drugs to suppress their immune systems, usually for when patients have an autoimmune disorders or when the patient is getting an organ transplant.  In both cases, the immune system starts attacking good tissues, so a major treatment is to mute the immune system to stop the attacks.

Researchers wanted to know if they could somehow use less of the immune-suppressing drug and still get a good result.  Turns out you can, you just need to do some Pavlov-type conditioning like Pavlov did with his drooling dogs.

All you need to do is pair taking the drug with some combination of stimulus like a taste, sound, or sight.  After consistent repetition, research shows that you can stop taking the drug and keep giving the taste, sound, or sight cue.  The body will still act as if it's getting the drug. 

This has even worked for humans when researchers paired a drug with white noise and sherbert.  Yummm. 

Caveat: the body's response without the drug is usually not as strong as with the original drug.  But even so, immune conditioning is used widely in the medical world to slow down how fast the body rejects a transplanted organ or to help decrease the drug dose needed by patients who need immune-suppressant drugs.

(This also explains the curious allergic response some people get to pictures of something they're allergic to.  The person's immune system is conditioned to have an allergic reaction when it sees the allergen, even when the allergen isn't even there.)

Researchers Cure Picky Eating

While listening to a lecture called "On the Origins of a Cultural Species" (click to listen) from Emory University's Center for Mind, Brain & Culture, the speaker (Joe Henrich from the University of British Columbia) revealed the secret for fixing picky eating habits.

In the lecture, Joe Henrich talked about how kids choose to model their learning and behavior after slightly older, happy, confident-looking kids who are getting positive attention from parents and other important social figures.

If you have a picky eater, he offered some helpful advice based off of scientific research:

"If you want to convince a kid to change [picky eating habits], the best thing you can do is not give him incentives, not teach him about the health quality of the food, but to sit him down at a table with kids slightly older who really like the food.  They'll eat the food, he'll see them move it, and then next you'll find that that kid will request that food next time he comes.  He'll eat more of it, select it on his own."

This is a critical example of "show don't tell."  When you're fixing picky eating habits, don't insist that the kid eat such-and-such--that will only lead to resistance.  Instead, let them just observe and make their own choice.  Find slightly older kids as models who are (or can act) happy, very confident, and who love eating the food that the picky eater won't eat.

Have the picky eater sit at the table with the model kids and have the models eat the food enthusiastically and maybe even tell them in private ahead of time to exaggerate how much they love the food.  Kids are natural hams and having a silly role to play like this will be fun for them.

Don't tell the picky eater, "Notice how Ben and Amy love spinach!"  Just let the picky eater make their own observations and decisions.  Choices we make on our own give us the most long-lasting change.