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A new study found that energy drinks and stimulant supplements were linked to disproportionately frequent reports of serious heart problems, including 11 times more reports of cardiac arrest and 4.5 times more reports of heart attacks. Young adults accounted for nearly half of the cardiovascular reports involving these products, raising concerns about their potential risks despite the study being unable to prove causation.

A surprising study of more than 4,500 older adults found that people who were overweight or obese when diagnosed with dementia had a 16% to 27% lower risk of death than those at a normal weight. Researchers suspect that extra energy and muscle reserves may help patients survive the disease's toll on the body, although the reason for the survival advantage remains unclear.

Ancient manuscripts, including the 1,000-year-old York Gospels, have revealed traces of a deadly sheep virus whose history stretches back more than 3,700 years. Scientists discovered that the virus has remained remarkably unchanged for millennia, turning historic parchment into an unexpected record of ancient disease outbreaks.

Alzheimer's disease (AD), a neurological disorder characterized by progressive deterioration of cognitive function, has complex pathogenic mechanisms and lacks curative therapies with proven efficacy. Aging and inflammatory responses, which play indispensable roles in the onset and progression of AD, are closely intertwined with mitochondrial dysfunction. During aging, a series of degenerative alterations, including accumulated mitochondrial DNA (mtDNA) mutations, excessive mitochondrial...

Mitochondrial dysfunction and declining ATP production are common features of aging, yet whether ATP availability itself directly regulates cellular lifespan is unclear. However, the causal relationship between cellular ATP homeostasis and aging has not been established. Here, we developed a synthetic system to manipulate intracellular ATP independently of endogenous energy production by expressing a plasma membrane-targeted nucleotide transporter, NTT1, from the intracellular parasite...

ObjectivesWhile studies have linked nature exposure to better cognitive health, little is known about the specific types or amounts needed for health benefits. Many studies regarding the health benefits of nature lack racially and ethnically diverse aging populations and have small sample sizes, limiting their generalizability. This study investigated the relationship between land cover types and cognitive function in older Mexican American adults from Wave 5 (2004-2005) of the Hispanic...