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Although some may argue that marijuana isn\u2019t as detrimental to one\u2019s health as alcohol, those smoking marijuana may not be aware that they\u2019re not the only ones they affect. In this episode of The Brain Warrior\u2019s Way Podcast, Dr. Daniel Amen and Tana Amen describe the surprising effect secondhand marijuana smoke may have on your brain, especially in terms of its perceived age.