A study in Oncotarget found that spending time in the forest significantly boosts immune function and increases cancer cell killing activity.
The study is also based on the fact that rural residents are less likely to develop cancer.
A pilot study in Xitou Forest, Taiwan showed that just five days in the forest led to remarkable immune benefits, and these benefits lasted for up to seven days.
Don't you think it's time to change your phone screen to forest green?
