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You can call any of these for free. You do not need a diagnosis, an appointment, or a crisis to call — questions and plain exhaustion are reasons enough.

  • Alzheimer's Association 24/7 Helpline 800-272-3900 24 hours a day, 365 days a year Free, confidential support and information for people with dementia, caregivers, families and the public. Master's-level clinicians. Also Spanish.
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In a medical emergency, call 911. More numbers, and what each line does, on the help page.

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Free to read, “May need a subscription” and “Archived copy”: what they mean

Whether an article is free to read is a guess, not a test of your access. Each item is one of three:

  • No label: free to read (303 of 347). The publisher’s page marks it free, or the outlet publishes free to read: Medical Xpress, ScienceDaily, NIH (incl. NIA and PMC), Alzheimer's Association, Alzheimer's News Today, NPR, Alzheimer's Disease International, or a .gov site.
  • May need a subscription (11 of 347). The publisher’s own page marks the article as not free to read, or — when the page says nothing — the outlet sells subscriptions: The New York Times, STAT, Scientific American, The Washington Post, The Wall Street Journal, Financial Times, The Economist, Bloomberg, The Atlantic, The New Yorker, Wired, Los Angeles Times, The Boston Globe, The Times, The Telegraph, New Scientist, Endpoints News, Science. Each badge says which.
  • “Free to read? Not known” (33 of 347). The outlet is on neither list and its page said nothing. We do not call these paywalled.

Archived copy links go to a copy the Internet Archive (web.archive.org) saved, dated the day it was saved. We show one only where the Internet Archive reported a working saved copy when we checked; an archived copy of a subscription article sometimes shows only its opening. 265 of 347 items have one.

Reaching 90 without dementia doesn’t mean you’re in the clear

ScienceDaily Research

A study of people over 90 found that dementia risk remains strongly shaped by sex, race and genetics, with women and black participants facing notably higher risks. …

Read at ScienceDaily → Archived copy (6 Sep 2026), Internet Archive

Your sleep may be hiding an early clue to Alzheimer’s

ScienceDaily

Frequent micro-awakenings during sleep were linked to higher genetic risk for Alzheimer’s in healthy middle-aged adults who had no symptoms. …

Read at ScienceDaily → Archived copy (28 Sep 2026), Internet Archive

This common vitamin was linked to 13% better cognitive scores

ScienceDaily

Older adults with mild cognitive impairment and sleep problems who took at least 5,000 IU of vitamin D daily scored more than 13% higher on a cognitive test than those taking none. …

Read at ScienceDaily → Archived copy (4 Oct 2026), Internet Archive

A major Alzheimer’s risk gene may shrink brain cells years before symptoms

ScienceDaily Research

Researchers have uncovered a possible reason why the Alzheimer’s risk gene APOE4 can disrupt the brain long before memory problems begin. In mice, APOE4 increased a protein called Nell2, shrinking neurons and making memory circuits unusually active. …

Read at ScienceDaily → Archived copy (1 Oct 2026), Internet Archive

A little-known protein may be fueling Alzheimer’s — and scientists found a way to block it

ScienceDaily Research

An experimental Alzheimer’s compound prevented damaging protein clumps from forming in the brains of mice, helping nerve cells survive longer and reducing amyloid buildup. …

Read at ScienceDaily →

A little movement in midlife could pay off for your brain years later

ScienceDaily

Exercise and healthy blood sugar levels in midlife may help slow cognitive decline decades later. Physical activity appeared especially beneficial for Mexican American adults, suggesting that some brain-protective factors may differ across populations.

Read at ScienceDaily → Archived copy (17 Aug 2026), Internet Archive

Women taking estrogen had fewer signs of Alzheimer’s in their brains

ScienceDaily Research

Women who used estrogen-only hormone therapy later in life were less likely to develop dementia and showed fewer signs of Alzheimer’s disease in their brains, according to a large study of more than 21,000 participants. …

Read at ScienceDaily → Archived copy (3 Oct 2026), Internet Archive

Nearly half of dementia cases may be linked to risks you can change

ScienceDaily Research

A long-term brain study found that common risks such as smoking, high blood pressure, heart disease, and high blood lipids were strongly linked to damage associated with vascular dementia. …

Read at ScienceDaily → Archived copy (15 Sep 2026), Internet Archive

Scientists discover a hidden brain shift that begins around age 50

ScienceDaily Research

Beginning around age 50, the brain’s memory center appears to lose many of its longtime immune cells and replace them with more inflammatory ones. This surprising shift may help explain how normal aging sets the stage for Alzheimer’s disease and dementia.

Read at ScienceDaily → Archived copy (27 Sep 2026), Internet Archive

AI can tell if your brain is aging faster than you are

ScienceDaily Research

A person’s sleeping brain may reveal warning signs of dementia long before memory problems begin. Researchers used machine learning to analyze EEG recordings from about 7,000 adults and found that an older-than-expected “brain age” was tied to a sharply higher dementia risk. …

Read at ScienceDaily → Archived copy (5 Oct 2026), Internet Archive

Scientists discover why poor sleep may harm some brains more

ScienceDaily Research

A gene involved in the brain’s overnight cleaning system may change how strongly poor sleep affects Alzheimer’s-related brain changes. The findings point toward more personalized prevention strategies based on both genetics and sleep habits.

Read at ScienceDaily → Archived copy (1 Aug 2026), Internet Archive

Scientists discover how obesity may fuel Alzheimer’s disease

ScienceDaily Research

Researchers have uncovered a possible biological pathway connecting obesity to Alzheimer’s disease. Obesity appears to raise levels of certain fat molecules that can travel to the brain, disrupt its immune defenses, and promote harmful amyloid buildup. …

Read at ScienceDaily →

A hidden Alzheimer’s tipping point may decide who gets dementia

ScienceDaily Research

Scientists have identified a possible tipping point that helps determine whether Alzheimer’s-related brain changes lead to dementia. The key may lie in how the brain’s immune cells respond to plaques and tau…

Read at ScienceDaily → Archived copy (22 Sep 2026), Internet Archive

Superagers keep youthful memories but their DNA does not explain why

ScienceDaily Research

Scientists expected SuperAgers might simply inherit fewer Alzheimer’s-related risks, but their genes looked much like those of typical older adults. …

Read at ScienceDaily → Archived copy (25 Sep 2026), Internet Archive

APOE2 may protect the brain from Alzheimer’s and aging

ScienceDaily Research

The longevity-linked APOE2 gene appears to protect brain cells by reducing DNA damage and helping neurons recover from stress. The finding could open a new path toward treatments that mimic APOE2’s defenses in people at higher genetic risk for Alzheimer’s.

Read at ScienceDaily → Archived copy (25 Jul 2026), Internet Archive

Lab-grown mini brains may predict which Alzheimer’s treatments will work

ScienceDaily

Miniature brain models grown from patients’ cells revealed striking differences in how Alzheimer’s-related tissue responds to an antidepressant. …

Read at ScienceDaily → Archived copy (1 Oct 2026), Internet Archive

Alzheimer’s breakthrough: Scientists restore two hours of sleep without clearing brain plaques

ScienceDaily Research

Researchers have uncovered a surprising culprit behind sleep loss in Alzheimer’s disease: the brain’s own immune cells. In mice with amyloid plaques, overactive microglia triggered inflammation that kept the brain from getting enough deep, restorative sleep. …

Read at ScienceDaily → Archived copy (22 Sep 2026), Internet Archive

Scientists discover a protein that protects the brain from Alzheimer’s damage

ScienceDaily Research

A protein called SORLA may act as a powerful defense against the toxic tau tangles involved in Alzheimer’s disease. Mice with extra SORLA had less tau accumulation, less brain atrophy…

Read at ScienceDaily → Archived copy (2 Oct 2026), Internet Archive

New Alzheimer's drug repairs DNA damage and reduces brain inflammation

ScienceDaily Research

A drug originally developed for spinal cord injury may offer a fresh approach to treating Alzheimer’s disease. In mouse studies, KCL-286 repaired dangerous DNA damage, reduced inflammation…

Read at ScienceDaily → Archived copy (17 Jul 2026), Internet Archive

The hidden skeleton “gatekeeper” inside brain cells could help fight Alzheimer's

ScienceDaily Research

Researchers have discovered that a microscopic skeleton inside neurons does much more than hold cells together. It acts as a gatekeeper that controls what brain cells absorb and when they absorb it. …

Read at ScienceDaily → Archived copy (15 Jul 2026), Internet Archive

Alzheimer's tau protein has a surprising secret role in memory

ScienceDaily Research

Researchers found that tau is essential for turning new experiences into lasting memories by helping organize the brain's memory-storing cells. …

Read at ScienceDaily →

Scientists may have finally found how Alzheimer's kills brain cells

ScienceDaily Research

Researchers have identified a previously overlooked mechanism of brain cell death that appears to play a major role in Alzheimer's disease and frontotemporal dementia. …

Read at ScienceDaily → Archived copy (23 Sep 2026), Internet Archive

Scientists discover why some brains resist Alzheimer's

ScienceDaily Research

Some brains appear to fight back against Alzheimer's by helping immature brain cells survive damage instead of succumbing to it. Understanding this natural resilience could point researchers toward entirely new ways to protect memory and slow dementia.

Read at ScienceDaily →

Scientists may have finally found how Alzheimer's spreads through the brain

ScienceDaily Research

A common brain protein may be giving Alzheimer’s disease an unexpected way to spread, carrying toxic Tau proteins from damaged neurons into healthy ones. …

Cited in this article, summarized in alzhub's library:
Read at ScienceDaily → Archived copy (30 Jun 2026), Internet Archive

Millions take omega-3 fish oil for brain health but a new study found no benefit

ScienceDaily Research

Fish oil supplements successfully delivered omega-3s to the brain, but a two-year study found no meaningful benefits for memory, cognition, or Alzheimer’s-related brain changes. …

Read at ScienceDaily → Archived copy (1 Oct 2026), Internet Archive

Tubulin prevents toxic brain protein clumps linked to Alzheimer’s and Parkinson’s

ScienceDaily Research

Scientists at Baylor College of Medicine may have uncovered a promising new way to combat Alzheimer’s and Parkinson’s disease. Instead of trying to stop Tau and alpha-synuclein proteins from gathering into tiny droplets inside brain cells, the researchers found that tubulin…

Read at ScienceDaily → Archived copy (22 Jun 2026), Internet Archive

Scientists reprogram brain immune cells to fight Alzheimer’s

ScienceDaily Research

A newly identified molecule called OLE helped restore the brain’s immune cells to a more protective state in Alzheimer’s models. The treatment reduced toxic plaque buildup and improved memory, raising hopes for a new therapeutic approach.

Read at ScienceDaily →

Scientists May Have Found What Really Triggers Alzheimer’s Disease

ScienceDaily Research

Scientists may have uncovered a hidden trigger behind Alzheimer’s disease. Instead of plaques being the root cause, amyloid beta appears to interfere with tau, a protein that helps keep neurons functioning properly. …

Read at ScienceDaily → Archived copy (19 Sep 2026), Internet Archive

10 surprising ways diabetes and dementia are connected

ScienceDaily

Diabetes and dementia appear to be closely intertwined, with each condition potentially influencing the other. Problems with insulin and glucose can affect the brain’s energy supply, increase inflammation, and damage blood vessels linked to memory loss. …

Read at ScienceDaily → Archived copy (1 Oct 2026), Internet Archive

Copper drug clears toxic Alzheimer’s proteins and restores memory

ScienceDaily

A copper-based compound restored the brain’s ability to clear toxic Alzheimer’s proteins, dramatically reducing amyloid buildup and improving memory in laboratory experiments. …

Read at ScienceDaily → Archived copy (20 Sep 2026), Internet Archive