Today's episode reveals a stunning medical reversal: a protein linked to cancer may hold the key to healing chronic wounds worth $20 billion in healthcare costs. We explore Japan's decade-long cycling study showing dramatic life extension, new research proving a few thousand daily steps can delay Alzheimer's for years, and why clearing brain plaques alone won't cure the disease. Plus, scientists solve Earth's billion-year oxygen mystery, discover 6-million-year-old Antarctic ice, and explain why your daily coffee might slash heart rhythm disorder risk by 40%.

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