A&D: Residents of Two Amazonian Indigenous Communities Showed Unusually Low Rates of Dementia

JAMA: High Salivary Cortisol Levels Are Associated With Memory Decline

The researchers note that cortisol may affect the brain because it can cross the blood-brain barrier and bind to receptors in areas involved in cognitive processes...

Nature Communications: You Don’t Have to Choose One “Perfect” Diet to Slow Aging

The main analysis included 6,470 people, and the findings were subsequently validated using data from an independent group of participants...

Florida Records One of the Largest Dengue Outbreaks in Decades: One Person Has Died

The current outbreak in Florida is likely linked to weather conditions that have favored the breeding of disease-carrying mosquitoes...

PLOS Medicine: More REM Sleep Is Associated With a Lower Risk of 83 Diseases

The researchers then compared this data with participants’ medical records and examined the associations between sleep characteristics and more than 1,000 diseases...

PNAS: Early Deafness Changes Brain Function and Enhances Peripheral Vision

This was observed both in the primary visual cortex and in the lateral geniculate nucleus, a brain structure that transmits visual information from the retina to the cortex...

Vision Loss Can Cause Hallucinations: What Is Charles Bonnet Syndrome?

The risk of developing the disease increases with age, particularly after 55...

Scientists Discover How Aggressive Brain Tumors Use Nerve Cells to Grow

As a result, GAA is released from the cancer cells into the surrounding tumor tissue...

What Happens to the Body After a Cup of Coffee: Seven Unexpected Effects

One of the best-known unexpected effects of coffee is stimulation of the bowel...

Physical Activity Lowers the Risk of Type 2 Diabetes, Especially in People Under 63, Researchers Find

The researchers assessed the amount of time participants spent engaging in moderate- and vigorous-intensity physical activity...