Metformin's Anti-Aging Case: Strong Clues but Still No Proof
This review pulls together lab, population, and clinical trial evidence on metformin as a potential aging-slowing drug. At normal doses, metformin seems to flip several key aging switches: boosting cellular cleanup, calming inflammation, and improving energy production. Large population studies link metformin use to lower rates of age-related diseases, even in people without diabetes. However, the review honestly notes that metformin may actually worsen aging in older animals, so the picture is still mixed.
Key Insight
This review suggests metformin shows promise against aging but its effects may differ by age.
Related Studies
Clearing Out Aging Cells Made Stem Cell Repair Work Far Better in Mice
Old, worn-out cells (called senescent cells) seem to block the body's natural repair work. In mice with liver damage and forced aging, combining a treatment that clears these cells with stem cell therapy worked far better than either alone. The combo reversed signs of aging and restored repair signals. This is early animal research, not tested in people.
How a Cellular Calcium Glitch Speeds Up Aging in Mice
When cells lose control of their calcium balance, it sets off a chain reaction that triggers DNA damage and inflammation tied to aging. In mice, an old antidepressant called mianserin calmed this calcium chaos. It improved several signs of aging and lengthened their lives. This points to calcium control as a possible target for slowing aging.
Weak Grip Strength Linked to Higher Risk of Pneumonia and Sepsis
In over 400,000 UK adults, weaker handgrip strength was tied to higher rates of pneumonia, UTIs, skin infections, and sepsis. Each 5-kg drop in grip raised infection risk by about 5-10%. The link was strongest in underweight people, and inflammation-related proteins like GDF15 partly explained it.
Disclaimer: Research summaries are provided for informational purposes only and do not constitute medical advice. Always consult a qualified healthcare professional before making changes to your health routine.