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Decreased concentration is often a normal part of aging as the brain's ability to function efficiently gradually declines. People who struggle with concentration when performing tasks can try strategies like avoiding multitasking, taking scheduled breaks, and removing distractions. Other lifestyle behaviors may also affect concentration and should be examined, such as sleep, medication, and caffeine intake. Activities like meditating, reading, and learning a new skill also can help improve mental focus.

Intensive blood pressure control that lowers systolic blood pressure (the first number in a reading) below 120 points may lower the risk of cognitive impairment or probable dementia.

A 2024 study suggests that older adults who fall for financial scams may have brain changes associated with a higher risk of Alzheimer's disease.

Sudden memory lapses could be natural aspects of aging or early signs of mild cognitive impairment (MCI). With MCI, memory loss is noticeable but usually does not impede the ability to carry out daily functions. A screening test from a doctor or more advanced testing (such as brain MRI or PET scans) from a neurologist can help identify potential cognitive problems so people can seek appropriate treatment.

Having an extremely low LDL level from aggressive cholesterol-lowering therapy was not associated with cognitive impairment, according to a 2024 study.

Communicating with someone with dementia can be tricky, since their ability to understand others and express themselves fluctuates and declines. Certain communication strategies can help smooth interactions between caregivers and dementia patients. They include being an active listener, avoiding confrontation, agreeing with the patient's reality, removing distractions, using shorter sentences and smaller words, asking yes-or-no questions, using written lists and schedules, and incorporating touch.

Eating a traditional Mediterranean diet or green Mediterranean diet, which emphasizes more foods high in plant foods, including green tea and duckweed, may help reduce brain shrinkage, a 2024 study suggests.