At 62, Phyllis Jones felt trapped in darkness. She was traumatized by her mom’s latest loss of life, ongoing pandemic stress and an more and more toxic work environment. A sudden panic assault led to a medical go away.
Her despair worsened till the day her 33-year-old son sadly advised her, “Mom, I didn’t think I would have to be your caregiver at this stage in your life.”
“For me, that was the wake-up call,” Jones, now 66, advised NCS. “That’s when I found the POINTER study and my life changed. What I accomplished during the study was phenomenal — I’m a new person.”
The Protect Brain Health Through Lifestyle Intervention to Reduce Risk, or US POINTER study, is the biggest randomized scientific trial within the United States designed to look at whether or not lifestyle interventions can defend cognitive operate in older adults.
“These are cognitively healthy people between the ages of 60 and 79 who, to be in the study, had to be completely sedentary and at risk for dementia due to health issues such as prediabetes and borderline high blood pressure,” mentioned principal investigator Laura Baker, a professor of gerontology, geriatrics and inner drugs at Wake Forest University School of Medicine in Winston-Salem, North Carolina.
Approximately one-half of the two,111 study individuals attended 38 structured staff conferences over two years in native neighborhoods close to Chicago, Houston, Winston-Salem, Sacramento, California, and Providence, Rhode Island. During every session, a educated facilitator supplied steering on find out how to train and eat for the mind, and defined the significance of socialization, the usage of brain-training video games, and the fundamentals of mind well being. The staff chief additionally held the group accountable for logging blood strain and different vitals. Physical and cognitive exams by a doctor occurred each six months.
At six staff conferences, the opposite half of the study’s individuals realized about mind well being and had been inspired to pick out lifestyle adjustments that finest suited their schedules. This group was self-guided, with no goal-directed teaching. These individuals additionally acquired bodily and cognitive exams each six months.
The two-year outcomes of the $50 million study, funded by the Alzheimer’s Association, had been concurrently introduced Monday on the 2025 Alzheimer’s Association International Conference in Toronto and printed within the journal JAMA.
“We found people in the structured program appeared to delay normal cognitive aging by one to nearly two years over and above the self-guided group — people who did not receive the same degree of support,” Baker mentioned. “However, the self-guided group improved their cognitive scores over time as well.”
Exercise, weight loss program and socializing are key
Exercise was the primary problem. Like the opposite teams throughout the nation, Jones and her Aurora, Illinois, staff acquired YMCA memberships and classes on find out how to use the gymnasium gear. Jones was advised to make use of cardio train to lift her coronary heart fee for half-hour a day whereas including energy coaching and stretching a number of occasions per week.
At first, it wasn’t straightforward.
The study individuals wore health trackers that monitored their exercise, Jones mentioned. “After that first 10 minutes, I was sweating and exhausted,” she mentioned. “But we went slow, adding 10 minutes at a time, and we kept each other honest. Now I just love to work out.”
Four weeks later, groups got a brand new problem — starting the Mediterranean-DASH Intervention for Neurodegenerative Delay, or MIND diet. The weight loss program combines the very best of the Mediterranean weight loss program with the salt restrictions of the DASH weight loss program, which stands for Dietary Approaches to Stop Hypertension.
“They gave us a refrigerator chart with foods to limit and foods to enjoy,” Jones mentioned. “We had to eat berries and vegetables most days, including green leafy veggies, which was a separate item. We had to have 2 tablespoons of extra-virgin olive oil once every day.”
Foods to restrict included fried meals, processed meat, dairy, cheese and butter. Restrictions had been additionally in place for sugary sweets. “But we could have dessert four times a week,” Jones added. “That’s awesome because you’re not completely depriving yourself.”
Another pillar of this system was requiring study individuals to familiarize themselves with their important indicators, Wake Forest’s Baker mentioned. “If at any point we asked them, ‘What’s your average blood pressure?’ they should be able to tell us,” she mentioned. “We encouraged people to monitor their blood sugar as well.”
Later got here mind coaching, through memberships to a preferred, Web-based cognitive coaching app. While some scientists say the benefits of such on-line mind applications have yet to be proven, Jones mentioned she loved the psychological stimulation.
Becoming higher at socializing was one other key a part of this system. The researchers tasked groups with assignments, such as talking to strangers or going out with associates.
“I found my best friend, Patty Kelly, on my team,” Jones mentioned. “At 81, she’s older than me, however we do all kinds of issues collectively — in actual fact, she’s coming with me to Toronto once I communicate on the Alzheimer’s convention.
“Isolation is horrible for your brain,” she added. “But once you get to a point where you are moving and eating healthy, your energy level changes, and I think you automatically become more social.”
As the study progressed, the researchers decreased check-ins to twice a month, then as soon as a month, Baker mentioned.
“We were trying to get people to say, ‘I am now a healthy person,’ because if you believe that, you start making decisions which agree with the new perception of yourself,” she mentioned.
“So in the beginning, we were holding their hands, but by the end, they were flying on their own,” Baker added. “And that was the whole idea — get them to fly on their own.”
Because researchers tracked every staff carefully, the study has a wealth of knowledge that has but to be mined.
“On any given day, I could go into our web-based data system and see how much exercise someone’s doing, whether they’ve logged into brain training that day, what’s their latest MIND diet score, and whether they’d attended the last team meeting,” Baker mentioned.
“We also have sleep data, blood biomarkers, brain scans and other variables, which will provide more clarity on which parts of the intervention were most successful.”
Digging deeper into the information is necessary, Baker says, as a result of the study has limitations, such as the potential for a widely known phenomenon referred to as the observe impact.
“Even though we use different stimuli within tests, the act of taking a test over and over makes you more familiar with the situation — you know where the clinic is, where to park, you’re more comfortable with your examiner,” she mentioned.
“You’re not really smarter, you’re just more relaxed and comfortable, so therefore you do better on the test,” Baker mentioned. “So while we’re thrilled both groups in US POINTER appear to have improved their global cognition (thinking, learning and problem-solving), we have to be cautious in our interpretations.”
It’s necessary to notice the POINTER study was not designed to offer the more immersive lifestyle interventions wanted for folks with early phases of Alzheimer’s, mentioned Dr. Dean Ornish, a professor of drugs on the University of California, San Francisco.
Ornish printed a June 2024 clinical trial that discovered a strict vegan weight loss program, day by day train, structured stress discount and frequent socialization might usually cease the decline and even enhance cognition in these already experiencing from early-stage Alzheimer’s illness, not only for these in danger for it.
“The US POINTER randomized clinical trial is a landmark study showing that moderate lifestyle changes in diet, exercise, socialization and more can improve cognition in those at risk for dementia,” mentioned Ornish, creator of the Ornish weight loss program and lifestyle drugs program and coauthor of “Undo It!: How Simple Lifestyle Changes Can Reverse Most Chronic Diseases.”
“It complements our randomized clinical trial findings which found that more intensive multiple lifestyle changes often improve cognition in those already diagnosed with early-stage Alzheimer’s disease,” Ornish mentioned. “But the US POINTER study showed that more moderate lifestyle changes may be sufficient to help prevent it.”
In actuality, two years isn’t ample to trace mind adjustments over time, mentioned study coauthor Maria Carillo, chief science officer of the Alzheimer’s Association.
“We really want to make recommendations that are evidence based,” Carillo advised NCS. “That’s why we’ve got invested one other $40 million in a four-year follow-up, and I imagine over 80% of the unique individuals have joined.
“Brain health is a long game,” she added. “It’s hard to track, but over time, change can be meaningful.”