Alzheimer's Disease Archive

A large, randomized Harvard study published online Dec. 21, 2021, by JAMA found that taking fish oil supplements didn't prevent depression in otherwise healthy older adults.

People sometimes experience a sudden tingling or numbness in the feet or hands that goes away. But if the problem keeps occurring, followed by painful or burning sensations, this could be a sign of small-fiber neuropathy. While not life-threatening, small-fiber neuropathy should always be checked out, as it could be a symptom of something more serious.

The brain has an enormous power to learn, remember, and solve problems. Yet, like any aging body part, it can gradually slow, and people may find it harder to concentrate and stay focused. Following certain strategies can help prepare the brain for situations that require a high level of focus and improve overall brain health.

Allergies that cause nasal congestion, sneezing, and a runny nose (what doctors call allergic rhinitis) can cause more frequent and louder snoring. Treating allergic rhinitis can reduce snoring and other symptoms related to poor-quality sleep.

Treating insomnia with cognitive behavioral therapy (CBT-I) may reduce the risk of depression in older adults. CBT-I seeks to modify thoughts and habits to improve sleep. It outperformed a more traditional insomnia treatment, sleep education therapy (SET), which seeks to change environmental factors and behaviors that contribute to poor sleep.

A reduction in tear production can lead to a condition called dry eye syndrome. It causes the eyes to become dry and irritated and may be prompted by aging, medication, or hormone shifts. Eye drops and ointments can help relieve symptoms.

Some people are much more prone than others to headaches related to dehydration. People who are more susceptible can avoid the headaches by making sure they drink enough fluids daily.

Many people experience dizziness, or a feeling of being woozy or lightheaded, from time to time. In most instances it's triggered by a minor underlying problem, such as dehydration, a medication, or blood pressure fluctuations. Only rarely is dizziness caused by something more serious, such as a heart rhythm disturbance or stroke. However, even if dizziness isn't caused by something serious, it can lead to a dangerous fall, so it's important to prevent these episodes when possible. People should get emergency help for dizziness that is long-lasting, severe, or accompanied by other symptoms, such as difficulty walking or numbness.

Constipation can describe many types of problems with moving your bowels. It becomes chronic when it lasts for weeks or months. Many people are interested in natural remedies for constipation, and one of the most common is adding fiber to your diet. A new study compared three natural sources of fiber, with encouraging results.

If you need surgery, does the sex of the surgeon matter? A study reviewed procedures done in Canada over a 12-year period involving more than a million adults, and found that in general, people operated on by female surgeons were less likely to experience complications. But why?