Ì첩ÌåÓý

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

There's no clear-cut answer about whether taking antihistamines for allergies increases dementia risk. Antihistamines have anticholinergic effects, which might increase the risk for dementia by blocking a particular brain neurotransmitter or increasing brain inflammation. But studies on whether there's any link between antihistamines and dementia have produced conflicting findings. Doctors advise taking the lowest antihistamine dose possible or using another medication for symptom relief.

High levels of Lp(a)—a fatty particle similar to LDL cholesterol—may double or triple a person's risk of a heart attack. About one in five adults may have elevated levels, which also raises the risk of stroke and aortic stenosis. Unlike LDL, which rises with age and is influenced by diet and exercise, Lp(a) remains largely constant over a person's lifetime, so a one-time test suffices for screening. Lp(a) testing is becoming more common now that five promising new Lp(a) therapies are in development.

After a heart attack or stent placement, people typically take a combination of aspirin and another antiplatelet drug. After one year, the new standard practice is to stop the aspirin, in contrast to the previous practice of stopping the other drug.

Up to 40% of American adults have reported difficulty swallowing pills. Older adults are more susceptible to this problem, known as dysphagia, because they take more medications. Dysphagia may provoke people to abandon their medication regimen. Problems swallowing pills are typically traceable either to the medication or the person taking it. Drugs can cause dry mouth, affect taste, irritate the esophagus, or cause sedative effects. Conditions that affect swallowing include cancer, stroke, neurological diseases, and hiatal hernia.

Many people need to take multiple medications for health and symptom control, but it requires extra attention to prevent risks for drug interactions, dosage errors, and other problems. Several strategies can help, such as learning the names of pills, what they do, and why they're necessary; writing down the day, time, and dose of each drug; using organization tools such as pillboxes and alarms; and scheduling a medication review with a doctor or pharmacist every 12 months, so that unnecessary pills—such as those no longer needed—can be omitted.