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Does the body start aging at 25? The science behind biological vs. chronological aging

By age 30, organs like the aorta, spleen, and adrenal glands can already show noticeable protein changes, indicating that biological aging starts far earlier than many people assume. This cellular-level shift contributes to the common query: "Does the body start aging at 25?" While not a switch that flips overnight, subtle internal changes do begin in our mid-20s, laying the groundwork for more visible signs down the line.