Head Trauma and Learning
November 23, 2012
Researchers at my alma mater have joined their voices to the growing chorus of concerns about the effects of repeated blows to the head.
A study of the cognitive effects of head impacts on members of Dartmouth College football, hockey, track, crew and Nordic ski teams compared before and after season results on learning and memory skills. Participating athletes also came from Brown and Virginia Tech.
-
22 percent of athletes in contact sports had lower results on learning and memory skills tests after their season.
-
Only 4 percent of athletes in non-contact sports posted lower test results.
The researchers caution that it is unknown at this point how long these negative effects may last, but they also note there is some correlation between test results and how hard the athletes were hitting heads.
This adds to the mounting evidence that rules writers, program sponsors, coaches and officials must look for and implement a variety of measures to reduce the frequency and severity of head impacts in both practice and competition in all sports.
Long Days
September 20, 2016
When I read, I prefer three types of literature:
-
Fun, fast fiction – so I can read more than one page before I fall asleep at night.
-
Well written, lively biographies of historical figures, especially in American history.
-
Articles and essays about space.
The pieces about space almost always have the effect of putting my world in humble perspective.
For example, this summer astronomers in Chile discovered Planet HD 131399Ab. It’s 320 light years from Earth, in the constellation Centaurus.
This planet is unlike any other in the known world. It has three suns. And the planet takes 600 of our Earth years to orbit its main sun once.
One day on Planet HD 131399Ab is like 600 years on Earth.
So, if you think you’ve had some long days recently, think again. Ponder Planet HD 131399Ab and its nearly 5 million-hour day.