Do you ever worry that your brain’s slowing down and your mind is … what’s the word … fogging? If you do, I have news. A recent study on birdwatching, with the appropriately named lead author Erik Wing, found that learning to become an expert birder causes changes to the brain that may help to protect against age-related cognitive decline. Compared with novice birders, when true bird nerds tease apart difficult species, they show more activity in brain regions linked to visual processing, attention and working memory. These same areas also appear more compact, and age-related changes in them are smaller.
The take-home message is that learning to tell a chiffchaff from a willow warbler could help us to stay mentally sharp as we age. But what about discerning a common quaker from a clouded drab? Or a brown-line bright-eye from a bright-line brown eye? These are the names, not of birds, but of moths. I’ve been hooked on moths ever since I was a kid.
