🧬 Aging isn't just "getting old"—it's when our cells lose function and stop. As they divide, telomeres at chromosome ends shorten until they signal the cell to stop. But nature has exceptions. 🦞 Lobsters have active telomerase, an enzyme that repairs telomeres indefinitely, making them biologically immortal. They don’t die of aging, but from the energy cost of molting—death by exhaustion. 🧪 For humans, hope lies in NAD⁺, a molecule that fuels cells and repairs DNA. As NAD⁺ declines with age, cells weaken—like drained batteries. Replenishing NAD⁺ revives them. 🧬 Telomerase also helps restore telomeres, but uncontrolled activity risks cancer—so balance is crucial. 🧠 OSK, a gene set, can reverse aging by turning old cells into youthful ones. Applied partially, it rejuvenates the body without erasing memory. 📉 Key aging points: At 34, regeneration slows; at 60, inflammation rises; by 78, cells shift to survival mode.

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