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| Under the Microscope |
| Rapamycin, the transplant pill taken to slow aging |
The Research
It began as a kidney drug. It stops the body from rejecting a new kidney. It also slows a growth switch inside cells. Mice on it lived longer. Last month, the University of Missouri gave 23 healthy adults a small daily dose for four weeks. In carriers of the riskiest Alzheimer’s gene version, brain blood flow rose more than 15%. The rest saw no change. But there was no dummy-pill group. |
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The Community
Longevity fans often take 5 or 6 mg once a week. Many get it from online doctors. Bryan Johnson tried weekly doses up to 10 mg for nearly five years. Then he quit. He listed skin infections, worse cholesterol and blood sugar, and a faster resting pulse. A year-long trial of 114 adults found weekly doses fairly safe. Its main target, belly fat, didn’t budge. |
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| Rapid Tap |
| A fumbled shirt button is often about speed. This one trains motor speed — the quick line from your brain to your fingers. Tap one round, then try to top your count on the second. |
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Big Tech's Grand Canyon land rush: 10/20
Its AI needs more electricity than the grid can deliver.
So it went looking for power...
And found it near the Grand Canyon.
Google signed a 15-year deal for it.
Bill Gates wrote a $100 million check.
Because what a drilling crew found out there could meet global electricity demand 140 times over.
Now Big Tech wants more of it.
On October 20th, Washington auctions off 83 parcels of federal land to tap it.
One company builds the gear it takes to reach it.
When Big Tech shows up on 10/20...
You'll want to be in first.
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| Alzheimer’s rewires the brain in its own pattern |
| Your brain’s regions talk all day long. They keep talking even while you rest. A special scanner can watch that chatter. It tracks blood flow, which rises wherever cells are busy. |
| A Swedish team studied those scans. The group, at Lund University, looked at more than 1,000 people. Jonathan Rittmo and Jacob Vogel led the work. Some people were young. Some were older and sharp. Others carried the marks of Alzheimer’s — sticky protein clumps called plaques, and twisted fibers inside brain cells. The study came out last month in Nature Neuroscience. |
| Let me explain what they saw. Age and Alzheimer’s both change the chatter. But they push it in different directions. With age, the regions that plan and decide start to sound alike. With Alzheimer’s, the thinking regions that hold memories blur together. And the regions for sight, touch and movement drift apart. Picture an office. In one, two managers start finishing each other’s sentences. In the other, whole floors stop calling each other. Same building. Different trouble. |
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The Alzheimer’s pattern showed up early. It was there in people with only a little plaque who still tested normal. And in people who already had memory trouble, the wiring matched their thinking scores better than the protein levels did. |
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| I could be wrong about the timing. This may take years to reach a clinic. These are group patterns. The team still has to show it can read one person’s scan and call that person’s future. That work is under way. But I believe the idea matters. For years we judged Alzheimer’s by counting the clumps. This study says the way the floors talk may tell you more. |
| Ask questions before any brain scan. If a doctor offers you one, ask what it can show and what it can’t. And I urge you to watch this line of work. It points past the plaques. |
| Lund University · Nature Neuroscience · September 22, 2026 |
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| Sleep in a room that’s truly dark |
| Your body clock sees light through closed eyes. A streetlight, a TV glow or a phone screen tells it the day isn’t done. So your heart and your blood sugar never fully stand down. |
| Bright nights track with heart trouble. An Australian team led by Daniel Windred and Andrew Phillips tracked nearly 89,000 British adults. Each wore a light sensor on the wrist for a week. Then the team followed them for up to nine and a half years. The brightest nights went with 47% more heart attacks. Heart failure ran 56% higher. |
| Older adults show the same link. A Chicago study of 552 adults aged 63 to 84 found fewer than half got five straight hours of darkness. Those who slept with light had more diabetes, more extra weight and more high blood pressure. Those are three of the biggest fixable risks for dementia. |
| No study here proves the light did it. But darkness costs nothing. Tonight, run one quick check. |
| The Protocol |
| When |
| At lights-out, every night |
| Duration |
| One weekend to fix the room, then every night after |
| Rules |
| Lights off, hold your hand out at arm’s length. If you can see it clearly, the room is too bright. Close the curtains or add blackout shades. Put tape over the glowing dots on chargers and clocks. Turn the TV off, not just down. Need a light for the bathroom trip? Use a dim amber one, low near the floor. An eye mask works too. |
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| Notice how you wake over the first week or two. And never trade safety for darkness. A low floor light beats a fall in the hall. I urge you to try it. |
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| Cutting factory food lifted mood in a small trial |
| Twenty adults tried two ways of eating. For four weeks they ate as usual. For four more, they swapped ultra-processed food — packaged, factory-made meals and snacks — for whole foods. Those who cut it by more than 85% saw moderate to large drops in depression scores. Anxiety eased a little too. Andrew Krystal’s team calls it a first step. A bigger trial is planned for 2028. All 20 carried extra weight and a blood sugar or blood fat problem. So it may not apply to everyone. |
| University of California, San Francisco · September 23, 2026 |
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| A computer redrew what people were looking at |
| Israeli scientists built a new kind of reader. It sketches what a person sees. The person lies in a brain scanner and looks at photos. The system reads the blood-flow patterns and rebuilds the picture. Michal Irani’s team showed it off this month. It needs one hour of a new person’s scans, down from about 40. It still slips. One cake came out as sandwiches. And it can’t read thoughts or dreams. But privacy experts are already asking who gets to look. |
| Weizmann Institute of Science · October 2026 |
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| Making music eased cravings in recovery |
| This was a small London trial. Sixteen adults in an addiction program took part. Half added six weekly music therapy sessions to their usual care. Right after each session, their cravings dropped. Caps that read brain waves showed calmer activity at the front of the head. But by the end, the two groups’ craving scores didn’t differ. Jörg Fachner’s team calls it a pilot. Bigger trials come next. |
| Anglia Ruskin University · Addiction Neuroscience · September 22, 2026 |
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| Wendy Suzuki |
| Professor of neural science and psychology, New York University · author of Healthy Brain, Happy Life |
| Suzuki studies memory for a living. Near 40, she saw her own life had shrunk to the lab. So she joined a gym, cut back on carbs and ate more vegetables. Then she found intenSati, a class that mixes kickboxing, dance and yoga moves with lines you say out loud. She liked it so much she got certified to teach it. She also noticed grant writing came easier on workout days. Today she does a 30-minute cardio and strength workout each morning, streamed at home. Her gear is a yoga mat and a couple of dumbbells. Some days she adds 30 minutes of yoga. She meditates daily. And she eats a Mediterranean-style diet, heavy on fruit in summer. Her reason for the morning sweat is plain. She wants a “watering can of growth factor” poured into her hippocampus, the brain’s memory hub. |
| Most of this stands on solid ground. Regular exercise has some of the best brain data of anything we cover. And her 30 steady minutes sit well inside it. Yesterday’s Weird One showed that harder isn’t always better, and her dose isn’t extreme. The spoken lines are personal taste. I know of no trial that tested them for the brain. And whether adults grow new memory cells is still argued. Copy the daily workout. The affirmations are optional. |
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