Mighty muscles may stave off depression

Exercise blocks brain toxin brought on by stress, study in mice shows

two runners on a path

STRENGTH RULES  Exercised muscles may filter harmful substances from the brain, a study in mice suggests.

Ed Yourdon/Flickr (CC BY-NC-SA 2.0)   

A powerful body can protect the brain, a new study suggests. Toned muscles filter a toxin from the brain and keep depression at bay, researchers report in the Sept.