September 16, 2019 =========
☆ cortisol （ホルモンの一種）コルチゾール
As you probably know, cortisol is a stress hormone released by the adrenal glands in the body. It helps us deal with stressful situations, however, when the level of cortisol in our body stays too high for too long, we can have problems, such as memory loss, tiredness, weight gain, and of course, a feeling of high stress.
Interestingly, some studies have found that cortisol decreases after an activity outdoors. The research showed that people had less cortisol in their system after gardening outdoors, compared to the people who were reading a book indoors. I think this is interesting, because I love reading books, so that would seem like a good thing to be doing!