A new study by UK researchers finds that exercising in nature boosts mental health:

The biggest effect was seen within just five minutes. With longer periods of time exercising in a green environment, the positive effects were clearly apparent but were of a smaller magnitude, the study found.

With this amount of pollen? I'll wait a while.

We want to hear what you think about this article. Submit a letter to the editor or write to letters@theatlantic.com.