The Chemistry of Restoration

Every cell in your body is under constant attack. Ultraviolet light, free radicals, and the simple chemistry of living damage your DNA approximately 10,000 times per day — per cell. Left unaddressed, this damage would cascade into mutation, disease, and death. But Swedish biochemist Tomas Lindahl made a discovery so remarkable it earned him the 2015 Nobel Prize in Chemistry: our cells have built-in repair systems that continuously scan the DNA strand, identify damaged segments, excise them entirely, and reconstruct the correct sequence — letter by perfect letter.…