Swimming gives your brain a boost – but scientists don’t know yet why it’s better than other aerobic activities

Mounting research shows that going for a swim can preserve memories, reduce mood disorders and increase mental acuity in all age groups.
— Read on theconversation.com/swimming-gives-your-brain-a-boost-but-scientists-dont-know-yet-why-its-better-than-other-aerobic-activities-164297

U.S. Infrastructure Is Graded C-Minus For Its Mediocre Conditions : NPR

The quadrennial Infrastructure Report Card from the American Society of Civil Engineers is an improvement from the D-plus four years ago but shows federal investment is still lacking.
— Read on www.npr.org/2021/03/03/973054080/potholes-grid-failures-aging-tunnels-and-bridges-nations-infrastructure-gets-a-c

To consider, next time you feel bad about that grade you got one time.