Mind & Mood Archive

A 2022 study found that low blood levels of vitamin D (under 25 nanomoles per liter) were linked with higher risks of dementia. People can boost vitamin D levels from diet, supplements, or sun exposure.

Renewed research into the potential benefits of psychedelic drugs has led to interest in microdosing — taking a fraction of a regular dose. Many people believe that microdosing can help them, but the evidence from some recent studies is mixed.

Older adults known as super-agers have cognitive function similar to that of young people. Experts believe this is because their brains shrink at a much slower rate, which may be the result of genetics or lifestyle habits or both. While people can't alter their genes, it could be possible to slow their natural brain decline by adopting some super-ager habits, like being physically active, pursuing mentally challenging hobbies, eating a diet rich in inflammation-fighting foods, and engaging with social groups.

In March 2022, the American Psychiatric Association added "prolonged grief disorder" to its official list of diagnoses. The diagnosis applies to bereaved adults who continue to experience intense grief more than a year after the death of a loved one. Someone with prolonged grief has a daily yearning for the loved one or is preoccupied with thoughts of the loved one to the point that it interferes with daily life. The diagnosis also requires additional symptoms, such as difficulty re-engaging in life or emotional numbness. The condition can be treated, and healing is possible.

Healthy older adults may have a higher risk for dementia if they follow high-inflammatory diets that include greater amounts of simple sugars, cholesterol, saturated fat, and fried foods.

A 2022 study found that survivors of severe COVID-19 infections can develop cognitive problems, such as brain fog or trouble finding words, equivalent to the loss of 10 IQ points or 20 years of aging.

A large study published online June 23, 2022, by JAMA Network Open found that poor handgrip strength in midlife was associated with cognitive decline a decade later.

The adoption of technology has grown rapidly among older adults, and with it have come potential benefits to mental health, daily functioning, and quality of life. Those who want to help an older person in their life might suggest one of the many options available.

In May 2022, the FDA approved a blood test to help diagnose Alzheimer's disease. The test looks for amyloid-beta protein, a marker of Alzheimer's. The blood test is quite accurate, compared with positron emission tomography (PET) brain scans, which are more expensive and complicated. More blood tests, including some that look for tau protein (another marker of Alzheimer's), also are under development. Other tests used to diagnose Alzheimer's include computed tomography (CT), magnetic resonance imaging (MRI), and a spinal tap.

People taking antidepressants may have many reasons for wanting to discontinue the drug. They may feel they no longer need the medication or decide they cannot tolerate side effects. A doctor should guide the process of tapering off antidepressants. The chance of depression recurrence is higher for people who take antidepressants long-term and stop abruptly. Withdrawal symptoms can make the tapering process uncomfortable, but it's generally not dangerous.