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| Water and trees both emit negative ions." Dr. John Veltheim
Negative ions are reportedly good for our health, and they are abundantly produced in nature. I heard Dr. Veltheim say recently that pine trees are especially good producers of negative ions. They are said to clean the air. webmd.com says negative ions can also boost our moods. Spending time in nature is good for health.
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Jun 9, 2016
Benefits of Nature
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