Headache and migraine Archive

Young-onset dementia, which occurs in people younger than age 65, is uncommon. A new study has identified 15 factors linked to a higher risk of young-onset dementia.

For the first time, consumers can order a blood screening for Alzheimer's disease. The screening looks for two types of brain proteins, one of which is associated with Alzheimer's. Doctors have concerns about the screening: it's not FDA-approved, there's little information about its accuracy, and it can take a few days to speak with a doctor about the results. By comparison, an official Alzheimer's diagnosis involves a comprehensive evaluation of someone's current and past health problems, physical and neurological exams, family history, blood tests to rule out hidden conditions that might be causing memory problems (such as vitamin B₁₂ deficiency), and imaging tests.

A 2023 study of lab animals suggests that the population of microbes in an individual's gut may influence the risk of developing Alzheimer's disease. Researchers found that healthy lab rats developed signs characteristic of Alzheimer's disease when they were injected with gut microbe samples from people with Alzheimer's. Rats that received samples from the most severely affected Alzheimer's patients developed the greatest brain abnormalities and memory problems. Rats did not develop these problems when they were injected with samples from people who had no signs of the disease.

An estimated 3% of adults ages 65 and older currently have dementia, and that proportion rises substantially as people age. The most convincing evidence for reducing one's risk relates to the basic foundations for an overall healthy lifestyle: aerobic exercise, a plant-based diet, and quality sleep. Aerobic exercise helps reduce the buildup of toxic proteins in the brain and improves blood flow, a plant-based diet can manage inflammation, and quality sleep helps the brain clear out harmful proteins.

A 2023 study suggests that people who average 10 or more hours sitting each day face higher risks of dementia than those who sit less, and those risks persist even if they exercise.

Most cases of chest pain don't signal heart problems. While chest discomfort of any kind should never be ignored, many conditions can trigger it. These include gastroesophageal reflux disease, gallstones, asthma, ulcers, anxiety, COVID, esophagus spasms, costochondritis, pulmonary embolism, pleurisy, aortic dissection, and pericarditis. Chest pain is likely to be unrelated to the heart if it's brief, triggered by eating, doesn't worsen with exercise, occurs only with movement, coughing, or breathing deeply, or it's localized to one spot.

The CDC estimates that 3.3 million Americans have myalgic encephalitis/chronic fatigue syndrome, a tricky-to-diagnose illness. Here we share one story about living with that illness from the Health Story Collaborative, which helps people delve into the healing power of narrative.

Seasonal affective disorder (SAD), a type of depression that begins in late fall and early winter, is caused by lack of sunlight exposure. Common symptoms of SAD include lack of sexual energy, overeating, problems sleeping, and social withdrawal. SAD is also associated with impaired cognitive function. Getting more sunlight from being outdoors or sitting in front of a sunlit window helps stimulate the brain's 24-hour sleep-wake clock. Taking antidepressants and using light therapy (which involves sitting in front of a light box) also can help manage SAD.

Most acute back pain happens because of weak muscles related to aging and inactivity. Symptoms usually last a few days, but pain and stiffness sometimes linger for a couple of weeks or longer. Frequent episodes can make people less active, as they are fearful about straining their back. Managing acute back pain is a two-step approach. First, treat the pain with over-the-counter remedies, cold and heat therapy, and rest, and then strengthen the back muscles and improve flexibility to prevent recurrent back pain episodes.