🌳 Spending time in a forest measurably strengthens your immune system, and this immunologist spent years proving it. I…
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🌳 Spending time in a forest measurably strengthens your immune system, and this immunologist spent years proving it. In one study, he sent twelve men on a three-day forest trip doing just slow easy walks, then checked their blood. Their natural killer cells, the ones that fight cancer and infections, surged about 50 percent. The boost was still there a month later, and a group that walked through a city instead saw nothing. The likely reason is phytoncides, compounds trees release to protect…