09/02/2026
Get out and enjoy nature!
Visiting a forest can induce a significant increase in both the number and activity of natural killer cells, one of the ways our body fights off cancer.
Researchers found a significant boost in natural killer cell activity in men and women after they spent a weekend walking in the woods. The same results were even seen after just a one-day trip to the woods, and the natural killer cell activity was still boosted a week later.
In a study comparing walking in a city versus a forest, the participants walking in the woods experienced an 80% boost in natural killer cell activity, compared to only a 10% bump for the city walkers. Moreover, researchers found that the increased natural killer cell activity lasted up to 30 days after the stroll in the forest. Learn more and see the studies referenced in the video "Boosting Anticancer Immunity with Forest Bathing" at https://bit.ly/3qeeOhP.