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Scientists find how “zombie” cells fuel inflammation as we age
4+ hour, 42+ min ago (594+ words) Scientists discovered that aging cells can use malfunctioning mitochondria to unlock inflammatory genes and keep the immune system stuck in a prolonged state of alert. Blocking one part of this process reduced inflammation and improved healthy aging in mice, suggesting…...
The secret to longer life may be hidden in bat DNA
2+ day, 8+ hour ago (651+ words) Long-lived bats appear to combine powerful immune defenses with unusual strategies for eliminating damaged cells, potentially helping them avoid cancer and disease for decades. Researchers hope these genetic tricks could eventually reveal new ways to protect human health during aging....
Supercharged mitochondria spark aging-related blood disorders
2+ day, 19+ hour ago (487+ words) As we age, blood stem cells, the essential source of new blood cells in the body, can accumulate genetic mutations. These mutations can give the cells a growth advantage, laying the foundation for developing serious health conditions. Now, scientists at…...
One immune switch may help drive aging across the body
1+ week, 3+ day ago (1233+ words) Aging may be partly fueled by immune cells losing their ability to clear away damaged, inflammation-promoting cells. Blocking a single receptor restored that cleanup process in mice, reducing inflammation and helping their organs, muscles, and memory remain remarkably youthful....
Your neighborhood in your 20s may shape your heart decades later
1+ week, 5+ day ago (265+ words) Where you live in early adulthood may quietly shape your heart health for decades. Researchers found that adverse neighborhood conditions were linked to a higher risk of coronary artery calcification in midlife, an early warning sign of cardiovascular disease....
Dogs may hold surprising clues to human longevity
2+ week, 1+ day ago (984+ words) Dogs and humans may share some of the same biological patterns tied to lifespan, according to new research from the Dog Aging Project. The finding could give scientists a useful new way to investigate how aging works in both species....
People who live past 110 have an unusual abundance of killer immune cells
2+ week, 6+ day ago (255+ words) People who reach 110 and beyond appear to have unusually large numbers of rare immune cells capable of killing abnormal cells. These CD4 cytotoxic T cells became more common with age and often expanded into large groups of nearly identical cells, suggesting…...
3 minutes of sprinting does something 90 minutes of exercise does not
3+ week, 2+ day ago (415+ words) Just three minutes of sprinting may produce a molecular response that looks very different from what happens after 90 minutes of moderate exercise. Sprinting Triggers a Rapid Molecular Surge The sprint workout also altered more than 200 metabolites and rapidly increased levels…...
Scientists reveal why walking gets so much harder with age
4+ week, 23+ hour ago (593+ words) New Australian research is shedding light on why walking often becomes slower and more tiring with age. The findings suggest that the body gradually gives up some movement efficiency in favor of staying stable and upright. Led by researchers at…...