COGNITION

This completed study tested whether painting metal roofs with a special heat-reflecting coating can lower indoor temperatures and improve health in Niue, a Pacific island nation facing record heat. Researchers enrolled 288 adults living in single-story homes with metal roofs. The…

This study tested whether eating prebiotic-fortified bakery products (like bread and pastries) for several weeks could improve memory, mood, and reduce inflammation in healthy adults aged 60-75 who had mild memory complaints. 55 participants were randomly assigned to eat either t…

This study looked at whether eating 2 ounces of walnuts every day for 12 weeks could improve memory and reduce brain fog in adults over 40 with Long-COVID. About 31 people took part, comparing walnut eaters to those getting usual care. The goal was to see if walnuts, which are ri…

This study tested whether combining two types of training—dual-task (doing two things at once) and perturbation-based (practicing balance recovery after a nudge)—could improve balance and thinking in stroke patients. 33 adults who had a stroke and had trouble with balance and mil…

This study tested whether a daily supplement called ETAS®, made from asparagus, could improve memory, mood, and reduce inflammation in healthy adults aged 60-80 who had mild memory concerns. 45 participants took either a low or high dose of ETAS® or a placebo for 12 weeks. Resear…

This study tested whether practicing two tasks at once (like walking while talking) with different priorities can help people with Parkinson's disease. 30 participants completed various balance, walking, and thinking tests. The goal was to see if this training improves physical p…

This small pilot study tested whether combining active video games (exergaming on Nintendo Switch) with resistance training could improve frailty in 30 nursing home residents. Participants played sports games like badminton, tennis, and soccer while also doing strength exercises.…

This study tested whether a home-based digital brain training program could help with depression, thinking skills, and quality of life in 36 people with cancer or end-stage kidney disease. Participants used a computer program called Rejuvenate for 30 minutes, four times a week, f…

This completed trial tested whether tyrosol (a compound found in olive oil) and creatine, alone or together, can improve endurance, strength, and fatigue resistance in healthy adults. Fifty active men and women aged 18–50 took supplements or a placebo for about 4 weeks. They comp…

This study looked at whether taking a daily multivitamin and omega-3 supplement (Kids Plus Multi & Omega) can improve thinking skills in children ages 4 to 17. Over 49 days, 120 kids took either the supplement or a placebo gummy and completed cognitive tests. The goal was to see …

This study tested whether a gentle electrical current applied to the scalp (transcranial electrical stimulation) could help healthy adults perform a complex computer task faster and more accurately. Forty-four volunteers with advanced degrees completed a track-and-capture task wh…

This study tested whether a 20-minute session of gentle brain stimulation (tDCS) before an afternoon nap could improve sleep patterns linked to memory and thinking in healthy adults aged 60 and older. Twelve participants completed computer tasks, received either real or fake tDCS…

This study tested whether a daily multivitamin called Vitals+ improves health, mood, and thinking skills in healthy adults. Thirty-seven volunteers took either the multivitamin or a placebo for 3 months. Researchers measured blood vitamin levels, cognitive function, and gut healt…

This study looked at whether a single dose of a ketone supplement can improve blood flow to the brain and thinking skills in young adults. Twenty healthy people aged 18-35 took either a low dose, high dose, or a placebo drink. Researchers measured brain blood flow and memory perf…

This study looked at 164 adults aged 65 and older who had a colonoscopy with sedation. Researchers compared two common sedatives—propofol and dexmedetomidine—to see how they affected thinking and memory. They also checked whether frailty played a role. Participants took a simple …

This study looked at how air pollution and different types of exercise affect thinking skills in 93 healthy adults aged 20-30. Participants did either high-intensity interval training, moderate aerobic exercise, or stretching, with some using air purifiers. Researchers measured c…

This pilot study looked at whether eating plant-based fibers daily can improve memory, attention, and mood in healthy adults aged 60 to 75. Researchers measured thinking skills, gut bacteria, and mental health over time. The goal was to understand how diet might support brain hea…

This study looks at how one session of moderate-to-hard walking or jogging changes the brain's response to insulin in adults aged 40 to 80 who are overweight or obese. Researchers will use MRI scans to measure brain insulin sensitivity and also test memory, thinking, and heart he…

This study followed 461 children whose mothers took a special nutritional drink before and during pregnancy. Researchers want to understand how parents' diet, lifestyle, and metabolism influence child growth, thinking skills, and overall well-being. The goal is to identify factor…

This study tested whether a short, non-invasive brain stimulation technique called TMS could improve thinking skills like attention and memory, and help people bounce back from stress. Thirty-eight healthy adults received brief TMS sessions targeting a key brain area. The goal wa…

This study tested whether taking aronia berry extract for a period can improve blood flow and insulin sensitivity in the brain, which are linked to better thinking skills. Thirty adults aged 55-75 with higher body weight but no diabetes took the supplement or a placebo in a cross…

This completed online study looked at whether natural environments like parks, gardens, and lakesides can improve mood and cognition in people with and without Parkinson's disease. 97 participants filled out surveys about their connection to nature, depressive symptoms, sleep, an…

This study tested whether a single session of high-intensity interval training (three 20-second all-out efforts on an arm bike) could improve heart and brain function in 30 people with spinal cord injury compared to uninjured controls. The goal was to see if this type of exercise…