CEREBRAL BLOOD FLOW

This study looks at whether a special 5-day fasting-mimicking diet each month for 6 months is safe and can improve blood flow to the brain in 40 middle-aged adults (45-65) who carry the APOE4 gene, which raises Alzheimer's risk. Participants will be randomly assigned to either th…

This study looks at whether eating 50 grams of walnuts every day for 24 weeks can improve brain blood flow and insulin sensitivity in adults aged 45-75 with abdominal obesity. Participants will have MRI scans and thinking tests before and after the walnut or no-walnut period. The…

This study will use ultrasound to measure blood flow in the brains of 200 healthy newborns, both full-term and premature. The goal is to find normal differences in blood flow based on how early a baby is born. These reference values could help doctors spot problems earlier and im…

This study looks at how the hormones estrogen and testosterone affect blood flow and energy use in the brain. Researchers will temporarily block these hormones in 50 healthy young men and women, then give them back to measure changes. The goal is to understand sex differences in …

This study looks at whether eating 4-5 servings of dairy foods daily (like milk, cheese, and yogurt) can improve brain function and thinking skills in adults aged 40-75 who are overweight. Researchers will use brain scans and cognitive tests to measure changes. The goal is to und…