science

Delivery might be part of it. The advice sounds very similar to the typical "if you want to be less depressed, just don't be depressed" or "you don't need bottle of something that rattles, you need a pair of sneakers and fresh air" business, so a lot of people automatically file it away under the same category.

Something like what the researchers suggested, where even moving a little bit helps, and it doesn't replace medication, though it may make it more effective, is better, but a lot of people will just read the headline and move off.