RE: LeoThread 2026-05-07 20-01
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A walk in the forest boosts immunity for about 30 days
Trees release phytoncides; inhaling them for 2 hours increases the number and activity of NK cells (the immune cells that kill cancer and viruses) in the bloodstream by about 50%
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The effect endures for roughly a month — this is the Japanese practice of Shinrin-yoku (Nippon Medical School)