Depressive Symptoms Up Risk of Death in Older Adults

Depressive symptoms in older adults are linked to an increased risk of death, including death from cardiovascular conditions such as heart disease and stroke. Yet these diseases explain only a small percentage of the deaths associated with depressive symptoms over time, according to a new study published in the Journal of the American Geriatrics Society.

Placebo Effect Can Work as Psychological Intervention

Placebo effects are no longer just about sugar pills as a medical treatment — placebos can also work when psychological effects are attributed to them.
Psychologists from the University of Basel in Switzerland reported these findings in the journal Scientific Reports, based on three studies with over 400 participants.

Study: Less Anesthesia Doesn’t Prevent Postoperative Delirium in Older Patients

Many older adults experience delirium, defined as a state of confusion or agitation, following major surgery. Previous research has suggested that closely monitoring the patient’s brain activity and making adjustments to protect the brain from too much anesthesia can lower the risk of postoperative delirium.

Scientists Link Specific Gut Bacteria to Depression

New Belgian research reveals a link between specific types of gut bacteria and depression. The findings, published in the journal Nature Microbiology, also provide evidence showing that a wide range of gut bacteria can produce neuroactive compounds.
Researchers called it the first population-level study on the link between gut bacteria and mental health, aggregating data from hundreds of people rather than studying animals or clinical trial subjects.

Exercise Could Postpone or Even Prevent Onset of Dementia

A new study has shown that exercise alters brain blood flow and improves cognitive performance in older adults — but not in the way you might think.
The new study from researchers at the University of Maryland School of Public Health found that exercise was associated with improved brain function in a group of adults diagnosed with mild cognitive impairment (MCI) and a decrease in the blood flow in key brain regions.

Supervised Aerobics May Hasten Teen Athletes’ Concussion Recovery

Teen athletes who sustained sports-related concussions recovered more quickly when they engaged in a supervised aerobic exercise regimen, according to a new study led by researchers at the University at Buffalo (UB).
The aim of the study was to evaluate progressive sub-symptom threshold exercise — physical activity that doesn’t worsen symptoms — as a treatment begun within the first week of a concussion following a few days of rest.