Studies Suggest Red Meat May Help Prevent Alzheimer’s

Must even steak be politicised? The American Heart Association recently recommended eating more “plant-based” protein in a move to counter the Health and Human Services Department’s new guidelines calling for more red meat.

Few would argue that eating a Big Mac a day is good for you.

On the other hand, growing evidence, including a study last month in the Journal of the American Medical Association, suggests that eating more meat—particularly unprocessed red meat—can reduce the risk of Alzheimer’s in the quarter or so of people with a particular genetic predisposition.

The APOE4 gene variant is one of the biggest risk factors for Alzheimer’s.

You inherit one copy of the APOE gene from each parent. The most common variant is APOE3; the least is APOE2.

The latter carries a lower risk of Alzheimer’s, while the former is neutral. A quarter of people carry one copy of the APOE4 variant, and about 2% carry two.

APOE4 is more common among people with Northern European and African ancestry. In Europe the variant increases with latitude, and is present in as many as 27% of people in northern countries versus 4% in southern ones. God smiled on the Italians and Greeks.

For unknown reasons, the APOE4 variant increases the risk of Alzheimer’s far more for women than men.

Women’s risk multiplies roughly fourfold if they have one copy and tenfold if they have two. Men with a single copy show little if any higher risk, while those with two face four times the risk.

What makes APOE4 so pernicious? Scientists don’t know exactly, but the variant is also associated with higher cholesterol levels—even among thin people who eat healthily.

Scientists have found that cholesterol builds up in brain cells of APOE4 carriers, which can disrupt communications between neurons and generate amyloid plaque, an Alzheimer’s hallmark.

The Heart Association’s recommendation to eat less red meat may be sound advice for people with high cholesterol caused by indulgent diets.

But a diet high in red meat may be better for the brains of APOE4 carriers.

In the JAMA study, researchers at Sweden’s Karolinska Institute examined how diet, particularly meat consumption, affects dementia risk among seniors with the different APOE variants.

Higher consumption of meat, especially unprocessed red meat, was associated with significantly lower dementia risk for APOE4 carriers.

APOE4 carriers who consumed the most meat—the equivalent of 4.5 ounces a day—were no more likely to develop dementia than noncarriers. (

The study controlled for other variables that are known to affect Alzheimer’s risk including sex, age, physical activity, smoking, alcohol consumption and education.)

APOE4 carriers who ate the most unprocessed meat were at significantly lower risk of dying over the study’s 15-year period and had lower cholesterol than carriers who ate less. Go figure. Noncarriers, however, didn’tenjoy similar benefits from eating more red meat.

The study’s findings are consistent with two large U.K. studies.

One found that each additional 50 grams of red meat (equivalent to half a hamburger patty) that an APOE4 carrier consumed each day was associated with a 36% reduced risk of dementia.

The other found that older women who carried the APOE4 variant and consumed at least one serving a day of unprocessed red meat had a cognitive advantage over carriers who ate less than half a serving, and that this advantage was of roughly equal magnitude to the cognitive disadvantage observed among APOE4 carriers in general.

In all three studies, eating more red meat appeared to negate the increased genetic risk of APOE4.

Perhaps one reason men with the variant are at lower Alzheimer’s risk than women is that men eat more red meat.

These findings might cause chagrin to women who rag their husbands about ordering the rib-eye instead of the heart-healthy salmon.

But remember, the cognitive benefits of eating more red meat appear isolated to APOE4 carriers.

Nutrition is complicated, and categorical recommendations—other than perhaps to avoid nutritionally devoid foods—would best be avoided by governments and health bodies.

Readers can order an at-home test from any number of companies to screen for the APOE4 variant.

The Swedish researchers hypothesize that APOE4 carriers may be evolutionarily adapted to carnivorous diets, since the variant is believed to have emerged between one million and six million years ago during a “hypercarnivorous” period in human history.

The other two APOE variants originated more recently, during eras when humans ate more plants.

APOE4 carriers may absorb more nutrients from meat than plants, the researchers surmise. Vitamin B12—low levels have been associated with cognitive decline—isn’t naturally present in plant-based foods but is abundant in red meat.

Foods high in phytates (such as grains and beans) can interfere with absorption of zinc and iron (also high in red meat), which naturally declines with age. So maybe don’t chuck your steak yet.

What’s more important than being a good employee right now? Looking like a good employee in the eyes of AI productivity trackers that more managers are using to evaluate their teams.

Employee-monitoring systems are especially popular at tech companies and are also used by other white-collar firms that want to probe how people spend company time. The scary thing: You might not even know you’re being watched because many states don’t require disclosure.

Metrics can include performance data that is undoubtedly relevant, such as sales results. But it also can employ dubious proxies like keyboard strokes and how often your computer screen goes into sleep mode.

We generally accepted, or at least understood, heightened surveillance during the work-from-home era. Back then it seemed reasonable for bosses to keep tabs on employees they couldn’t see.

Yet the oversight has only escalated, and tensions are rising, too.

A group of former Meta Platforms employees alleges in a lawsuit that the company used a “constellation of internal artificial-intelligence systems” when it began laying off about 10% of its workforce in May. Meta says humans make termination calls.

However that case shakes out, a couple of things are clear. Companies eager to gauge which employees are locked in now have sophisticated AI monitoring systems at their disposal. And they believe they have leverage in a tepid labor market.

So while we may chafe at having our worth reduced to numbers on the boss’s productivity dashboard, we have to play the game as it’s being played. Here are some tips, based on conversations with people who make employee monitoring systems—and others who game the systems.

Be meticulous about your calendar

Calendar integration is one way that productivity trackers have gotten more advanced and, ostensibly, fairer.

Let’s say you make an old-fashioned phone call or attend an in-person meeting. Your Outlook or Slack status may switch to “away,” making you appear as inactive as if you were taking an extended coffee break.

Employee monitors like one made by a company called Insightful cross-check your online status with your calendar to see whether there is a valid reason for your apparent inactivity. If that call or meeting is on your schedule, then the system will recognize that you are busy offline. If nothing is on the books, it could look like you’re slacking off.

Hit the activity sweet spot, around 80%

Let’s not go any further without addressing the underlying question: How much downtime is permissible during the workday? After all, people have been scared to let managers see anything non-work-related on their screens since personal computers first arrived in offices.

No one knows this better than Roger Wagner, who is widely credited with creating the first “boss button” in the early 1980s. He designed a keyboard shortcut to instantly display a spreadsheet if the boss walked by your cubicle while you were playing a computer game. Boss buttons have been features of countless diversions since. (I confess to using one built into a March Madness streaming app.)

Wagner, the founder of computer-education company 1010 Technologies, says his original design was a joke—more of a commentary on overbearing managers than a cover for lazy employees. Good bosses understand workers need mental breaks throughout the day, he says.

This matches what I heard from Insightful Chief Executive Ivan Petrovic. He says customers that use his company’s workforce-management platform don’t expect employees to stay on task 100% of the time.

“On average companies are aiming for 60% to 80% of your time being utilized for work during the day,” he says.

Go ahead and exhale. It’s probably OK to watch an occasional YouTube video at your desk.

And if you’re going to artificially inflate your activity level, be careful. Hitting 90% could look suspicious.

Get physical

So don’t leave your mouse jiggler on all day. Choose the right one if you must resort to shenanigans.

There are lots of software applications that mimic the movements of a computer mouse, so you can appear to be working while away from your desk. There are also devices that plug into computer ports and do the same thing.

Corporate cybersecurity systems increasingly block these apps and devices, and productivity trackers claim to be able to detect them. But some workers swear by mouse docks, like one made by Tech8 USA, that keep cursors moving. The company originally made mouse-moving software but now focuses on physical jigglers.

“People are drawn to mechanical solutions because they’re so simple and don’t require software,” says Tech8 Marketing Director Sam Matthews. “As monitoring technology becomes more sophisticated, that distinction has become even more relevant.”

Use AI, but not too much

Another popular metric for employee-monitoring systems is AI usage. Companies want to know who is embracing new tools, and it can be tempting to think more is better.

“There’s a performative aspect where employees overblow their usage of AI so that they appear relevant in the organization,” says Andrea Derler, principal researcher at Visier, which helps companies track and analyze employee work habits.

In a recent Visier survey of 1,000 U.S. workers, 48% admitted to exaggerating their AI usage.

This is already an outdated strategy. Using AI for everything used to score points for experimentation. Now it can seem wasteful because many companies are watching AI token spending more carefully.

Look, productivity theater has always been part of work. Most of us aren’t trying to cheat the system, but expectations are changing so quickly that we need to be savvy about what the latest employee trackers are looking for.

Sometimes it takes a little gamesmanship to get full credit for our contributions.

Studies Suggest Red Meat May Help Prevent Alzheimer’s

At least for people who carry the APOE4 genetic variant, a juicy steak could keep the brain healthy.

As AI productivity trackers reshape workplace evaluations, employees are learning how to manage calendars, activity levels and AI usage to ensure their contributions are recognized.

Be meticulous about your calendar

Hit the activity sweet spot, around 80%

Get physical

Use AI, but not too much