Your Body Has an Age. Now Your Brain Does Too.

TORONTO--(BUSINESS WIRE)--Oct 14, 2026--

Muse today announced Muse Brain Age, a weekly measure of how old a person's brain appears relative to their actual age. It is the only consumer brain age measure derived from direct brain activity, developed from peer-reviewed research published in Imaging Neuroscience. Muse Brain Age begins rolling out in the Muse app for iOS and Android on October 19 on Muse 2, Muse S and Muse S Athena, and every user's first reading is free.

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In the Alzheimer's Association's 2026 Facts and Figures report, 99% of American adults aged 40 and older said brain health matters at least as much as physical health. Only 9% said they knew a lot about how to take care of it.

Muse has spent over a decade building tools for exactly that, and Brain Age is the next step.

Biological age has become one of the defining consumer health metrics of 2026, and watches, rings and smart beds estimate how old the body is from heart rate, heart rate variability, VO2 max and sleep. None of them can describe the brain. Reading the brain takes EEG, sensors on the head that pick up its electrical activity directly.

Muse Brain Age measures the one organ the others cannot reach.

What is brain age?

Brain age is an estimate of how old a brain appears from patterns in its activity, compared with the person's actual age. The difference between the two, known as the brain-age gap, has been studied for more than a decade, mostly with MRI. Muse Brain Age brings that measure to EEG recorded at home.

"Brains do not age on a schedule. Two people at fifty can have brains that look years apart, and neither of them would know it," said Nadia Kumentas, Chief Product and Marketing Officer of Muse. "Everyone accepts that bodies change with age, which is why strength and cardiovascular fitness get tracked more closely over time. The brain deserves the same attention, and Brain Age makes it something people can actually watch."

What does a Muse Brain Age reading show?

A Muse Brain Age reading is a difference in years. It might come back three years younger than a person's actual age, or two years older. Muse reports the difference rather than an absolute age, because the difference is the part that carries meaning: it answers where you stand relative to your age. In evaluation against people who had no part in building the model, Muse Brain Age estimates differ from chronological age by about 3.8 years on average, and an individual's weekly reading typically moves by about 1.9 years from one week to the next.

Two contributors go into that reading:

The recording happens during sessions people are already doing. A first reading draws on eyes-closed Muse sessions totaling at least 10 minutes across 7 different days, plus the four cognitive tests. After that, sessions on 3 days a week keep it current, and each Monday reading is updated from the previous week’s sessions.

A single reading gives a person a starting point. Six months of readings gives them a trajectory. Brain age research has relied on MRI, which means a scan every few years at best. A weekly reading at home needs no clinic and no scanner.

Grounded in peer-reviewed research on more than 5,200 at-home recordings

Muse has recorded more than a billion minutes of EEG in people's homes since 2014. In 2024, Muse researchers and collaborators used that data to ask whether four dry sensors could estimate brain age at all. A peer-reviewed study in Imaging Neuroscience of more than 5,200 at-home recordings from users aged 18 to 81 showed they could, within the range reported for laboratory-grade equipment. The signal sits in rhythms such as alpha, which shift as people age.

Muse Brain Age is what that result became. The 2024 study used a model with about 3,300 parameters; Muse Brain Age uses one with 300 million, about 90,000 times more. On people whose data was not used to build it, the EEG model reduced mean absolute error by 47% against the 2024 model, and adding the cognitive tests cut the remaining error by a further 13%. The size matters because no two brains age the same way, and a model that large can hold that variation instead of averaging it away. Most brain age research has relied on measurements taken years apart, which shows where a person is but rarely how they got there. A weekly reading at home turns that snapshot into a line.

"The brain's rhythms shift slowly across adulthood. Alpha, one of the strongest, gradually gets slower, and my lab spends a lot of time working out why," said Dr. John Griffiths, Research Scientist at CAMH and Assistant Professor at the University of Toronto. "Those changes unfold over years, and any single reading also moves with how rested or stressed you are. Measuring every week, over months and years, is how you would start to see the longer trend."

Muse Brain Age is not a diagnostic test and does not detect, predict or rule out any medical condition, including cognitive decline or dementia.

Availability

Muse Brain Age starts rolling out on October 19 and reaches all users by October 26. It works with Muse 2, Muse S and Muse S Athena. Every user gets their first reading free. Continued weekly readings, full history and contributor detail are included with Muse Premium, available bundled with Muse 2 ($309) or Muse S Athena ($539). Learn more at choosemuse.com/pages/brain-age. Samples, imagery and interviews are available on request.

About Muse by Interaxon Inc.

Muse makes EEG brain-sensing wearables and the software that turns brain activity into measures people can use at home. For over a decade, Muse has shipped more than 500,000 devices, built one of the world's largest at-home EEG datasets, and supported more than 200 third-party-led studies from institutions including the Mayo Clinic, MIT and Harvard. Muse was named to TIME and Statista's World's Top HealthTech Companies 2026. Muse is headquartered in Toronto, Canada.

Muse Brain Age is a general wellness feature. Muse is not a medical device.

Data note: Brain Age is computed in Muse's own systems, and the app receives only the resulting reading. The model behind it is an internal research system trained on curated, de-identified EEG, as described in Muse's Privacy Policy. Muse does not sell brain data.

Your Body Has an Age. Now Your Brain Does Too.

CAIRO (AP) — Two regional officials say offices belonging to senior executives with Saudi oil giant Aramco were hit in an overnight Houthi strike on the company’s headquarters.

The officials said the top three floors in a building used by top executives were damaged. One official said the office of the company’s chief executive was among those hit. There were no casualties.

The officials spoke on condition of anonymity because they were not authorized to discuss the matter with the media. The Houthis earlier said they targeted Dhahran, which hosts the headquarters, with a ballistic missile.

THIS IS A BREAKING NEWS UPDATE. Check back for updates. AP’s earlier story follows below.

New explosions were heard in the Saudi capital, residents said Wednesday, as blame again quickly fell on Iran-backed Houthi rebels in neighboring Yemen. A Houthi official told The Associated Press that powers including Russia and China had reached out to the rebels in search of a ceasefire deal.

The sight of smoke rising from some of Saudi Arabia’s most sensitive facilities in recent days has rattled the region and global markets while increasing questions for President Donald Trump, who has said he is evaluating whether the U.S. should join Saudi strikes against the Houthis.

In the latest attacks, the Saudi-led military coalition fighting the Houthis said it intercepted cruise and ballistic missiles and drones targeting the capital, Riyadh; a ballistic missile targeting Dhahran, which hosts the headquarters of Saudi oil giant Aramco; and a cruise missile targeting Al-Kharj, home to Prince Sultan Air Base and the state-owned Military Industries Corporation.

The Houthis have repeatedly targeted Saudi airports, military facilities and oil infrastructure in the latest front in the Iran war. One of the Riyadh residents, who spoke on condition of anonymity for their safety, lives in northern Riyadh, where King Khalid International Airport — targeted multiple times in the past week with strikes that have killed at least 18 people and hurt over 300 more — is located.

The Houthis called the latest attacks retaliation for “treacherous Saudi aggression” against the rebel-held Yemeni capital of Sanaa and other areas. Separately, the rebel-run Health Ministry reported two dead in attacks in Yemen on Tuesday and blamed the Saudis.

The Houthis, hardened by years of civil war, have emerged as Iran's most effective armed proxy of the moment, but experts say they also have their own agenda. Either way, they are applying increasing pressure on a key U.S. ally.

A senior Houthi official told The Associated Press that regional and international powers have reached out in an effort to stop the attacks on Saudi Arabia as part of a ceasefire deal.

Mohamed al-Bukhaiti, a member of the Houthis’ political bureau, said Oman has tried to get both sides back to the negotiating table, and Russia and China also tried via Iran.

“We’re welcoming any mediation that leads to an end of the war and the blockade between Sanaa and Riyadh,” he said. “We’re ready for a comprehensive end of the war and the blockade from both sides, not just a temporary ceasefire."

The rebels continued to warn of attacks on both airports and oil facilities. Over 3,000 flights scheduled to depart from airports across Saudi Arabia have been canceled or listed as not operating in the past week, according to aviation analytics firm Cirium.

The escalation has highlighted Saudi Arabia’s struggle to intercept Houthi missiles and drones. The kingdom has pressed allies like the United States for more military support. Regional officials say Saudi Arabia, the world’s top purchaser of U.S. weapons, is running low on interceptors.

The Saudis are trying to intercept daily attacks across a territory about three times the size of Texas. Experts have said trying to intercept all of the missiles and drones is impossible. The Houthis have a large arsenal capable of striking targets well over 1,000 miles (1,600 kilometers) away. Some warheads change direction during flight.

Even interceptions are a danger. Overnight, Saudi Arabia’s Civil Defense said debris from two intercepted Houthi ballistic missiles fell on residential areas in Riyadh, injuring four people including a child and damaging 15 homes.

Meanwhile, the Saudis have been carrying out airstrikes in rebel-held areas of Yemen in support of the country’s internationally recognized government. The fighting erupted this year when the rebels blamed the Saudis for a strike on the airport in rebel-held Sanaa. That attack revived anger over a Saudi blockade of the Houthis. The rebels in turn declared their own blockade against the kingdom.

A week and a half ago, the Saudi-led coalition responded with a major military offensive.

On Wednesday, the Houthi-run Health Ministry said two people were killed in an airstrike Tuesday in the Ras Isa port area in Hodeida province. The strike hit a facility of the state oil company and wounded two others, the ministry said, and blamed Saudi Arabia. The Saudi-led coalition also attacked an oil facility in Sanaa.

The targeting of fuel storage facilities in Houthi-controlled areas marks a new phase, said Ahmed Nagi, senior Yemen analyst at the International Crisis Group, a think tank. He added that in a war of attrition, the rebels could risk losing much of their military capacity.

“The Houthis are betting on pressure, while the Saudis are betting on time. The Houthis are trying to strike critical infrastructure in Saudi Arabia to raise the cost of continued military intervention and support for the Yemeni government,” Nagi added.

Meanwhile, the fighting has revived Yemen's civil war after four years of relative calm.

The International Committee of the Red Cross said all front lines there have seen an “unprecedented surge in weapon-wounded cases,” especially in Marib, Taiz and along the Red Sea. Hospitals are overwhelmed and "mass-casualty influxes are increasingly frequent.”

Meanwhile, the World Food Program said it can no longer reach over 600,000 people in the besieged city of Taiz who depend on aid.

Anna reported from Jerusalem. Associated Press writers Sarah el Deeb in Beirut and Fatma Khaled in Cairo contributed.

FILE -Birds fly over a billboard advertisement for Saudi Arabia's state-owned oil giant Aramco, with Arabic that reads, "Saudi Aramco, soon on stock exchange," in Jiddah, Saudi Arabia. (AP Photo/Amr Nabil, File)