Scientists Couldn't Explain Why Women in This Ethiopian Village Look 35 at 60. Then They Watched What They Did Every Morning.

Let me correct the headline first, because the women here would want me to.

They do not look thirty-five. Their faces are lined, their hands are worn, and their hair is grey under the scarves. What is startling is not the face. It is the rest: the posture, the pace, the fact that a sixty-three-year-old woman will squat flat-footed at a cooking fire for forty minutes and stand up without using her hands. It is that nobody in this village of 814 people, when I ask, can produce a word for the afternoon crash.

The easy version of the story stops there and reaches for the jug. The honest version keeps looking, and it finds a great deal that is not in a jug.

• They walk everywhere. The market is a seven-mile round trip. The water is a mile. There is no vehicle in the village and, at this altitude, every step is done on thin air.
• They sleep with the sun. There is no electricity past a few solar lamps. Bed is an hour after dark. Nobody here has ever scrolled at midnight.
• They eat what they grow — teff, lentils, greens, a little butter, very little sugar — and they eat it at the same two times every day.
• And every one of them, every morning, drinks the same cup before she does anything else.

Any one of those would be a study on its own. Together they are a life, and the plants are one part of it. I say this early because the rest of this piece is about the cup, and I do not want anyone to come away thinking a cup is what makes a woman carry water up a hill at sixty-three.

I read the first version of this story two years ago and it made me feel like I'd failed at something. This version didn't. The part about walking everywhere and going to bed with the sun — that's the part I needed to hear.Jacqueline R. · 52 · Philadelphia PA★★★★★

It is made before sunrise by whoever in the household is oldest, which in most houses means the grandmother. Dried roots and seeds, kept in a cloth bag hung from the rafters, are pounded in a wooden mortar, steeped in water that has just come off the boil, and strained through cloth into a clay jug. The jug goes around. Everyone over about fourteen gets a tin cup of it, and the women drink it standing, because they are already on their way somewhere.

It is bitter. It is also, I should say, not particularly mysterious to the people drinking it. When I asked Tsehay's mother — who is somewhere north of eighty and would not be more specific — what the cup was for, she looked at me as though I had asked what breakfast was for.

"It keeps the body remembering what it is," she said, and went back to the fire.

I heard that phrase, or a version of it, from eleven different women over four days. Not one of them described it as a cure. Not one of them described it as doing anything in particular. It was simply the first thing that happened in the day, before the first decision, before the first load, and it had been the first thing for as long as their mothers and their mothers' mothers could say.

That, it turned out, was the part the biochemist would end up caring about most.

I'm a nurse, twelve-hour shifts, and the thing I recognized wasn't the plants. It was "before the first decision." I take mine in the parking garage before I badge in. It's the only part of my day nobody else gets to schedule.Wanda M. · 49 · St Louis MO★★★★★

Dr. Ayana Brooks is a biochemist at Howard University. She had gone to Kela Doro the year before I did, on a small grant, expecting — she says this with some embarrassment — to find something exotic.

"I thought I was going to bring back a plant nobody had a name for," she tells me in her office, where a cloth bag identical to the ones in the village sits on a shelf next to the mass spectrometer printouts. "What I brought back was a bag of things that all had names. Roots and seeds that people in a lot of places have been drinking for a long time, in a combination that happened to make a great deal of sense."

What she could match, she matched. What she could not, she says plainly, she left alone. The blend as she reconstructed it comes down to five botanicals, and here is where she becomes careful, because every one of them has been studied on its own and none of them has been studied as this cup.

• Ashwagandha, for the stress end of it. "Several trials report lower cortisol in people who take it. The evidence is real. It is also early, and the effect sizes are modest. I would not let anyone tell you a percentage."
• Maca, for energy and mood through the transition. "It is an adaptogen. It is not a phytoestrogen, and I want that in print, because half the pages on the internet get it wrong. The small trials that exist report better mood and energy, with hormone levels unchanged. Unchanged is the point."
• Fenugreek, for comfort through the change. "Traditional use for exactly this. Two cautions: it can lower blood sugar, which matters if you take anything for that, and it is a cross-allergen with peanuts and legumes."
• Beet root, for circulation. "Nitrate to nitric oxide. That pathway is not controversial. It is also not glamorous, which is probably why nobody puts it on a label in large type."

"Individually," she says, "you can defend every one of those with a citation. Together, as a cup, nobody has run the trial, and I am not going to pretend the village is the trial. It is not blinded, it is not controlled, and every woman in it walks seven miles a day."

So what, I ask her, did the village get right that a trial cannot see?

She thinks about it for a while.

"The same cup. Every morning. Before sunrise. For forty years. No trial measures that, because no trial lasts that long and no participant is that consistent. But that is the variable. Not the dose. Not the ratio. The fact that it was never once a decision."

My daughter is in biochem and she read this part twice and said "Mom, she's being honest with you." That is the first time anyone has said that about something I was thinking of buying.Thelma C. · 57 · Birmingham AL★★★★★

This is the part where most pages in this category start lying, so it is worth being plain about it, and Dr. Brooks was plainer than I expected.

No plant reverses age. Nothing in that cup, and nothing in any bottle that copies it, takes a year off a face. Nothing in it moves fat from one place to another, and nothing in it is a hormone or replaces one the body has stopped making. "If a page tells you a dropper does any of those three things," she says, "close the page."

What is on the table is smaller and, she argues, more useful: the terrain. The stress that never quite comes down. The nights that break at three. The energy that used to last until dinner. The circulation. Those are the things the five plants are individually studied for, and those are the things the women of Kela Doro, without a word for any of them, appear to have on their side.

• Ashwagandha The stress end of it. Several trials report lower cortisol; the evidence is real but early, and the effect sizes are modest.
• Maca An adaptogen — not a phytoestrogen, whatever other pages tell you. Small trials report better mood and energy through the transition, with no change to hormone levels.
• Fenugreek Used for comfort through the change. Note it can lower blood sugar and it is a cross-allergen with peanuts and legumes.
• Beet root and L-arginine Circulation and blood flow. Unglamorous, and honest about what they are.

I was spending close to two hundred dollars a month on things that promised me everything. This promised me less and it's the one I'm still taking eight months later. Make of that what you will.Rochelle B. · 46 · Jacksonville FL★★★★★

When Dr. Brooks came home she did the thing she says she should have done a decade ago: she found a standardized liquid of the same five botanicals — a small amber bottle with a dropper, the milligrams printed on the back — and started taking it every morning before she opened her laptop. Then she asked the women who wrote to her after her talk to tell her, honestly, what a year looked like. Here is the version she gives me.

"The first two weeks are about whether you remember to do it. That's it. That is the whole of weeks one and two." Around week six, she says, is when the first thing tends to get noticed — and it is never the thing people were hoping for. It is that the night did not break at three. It is that the morning was a morning. It is that a pair of pants sat differently, not because anything moved but because a body that is sleeping carries itself differently. It was three months, in her own case, before anybody said anything to her.

"The village had a forty-year head start," she says. "You do not get that back in a month. What you get is the first morning of it."

Week two, nothing. Week four, nothing I'd swear to. Week six I realized I hadn't been up at three all week. That was it. That was the whole fireworks show, and I'll take it.Sandra W. · 54 · Kansas City MO★★★★★