Not CLL related, but yet another benefit of exercise:
newscientist.com/article/20...
"While moderate-to-heavy exercise seems to stave off decline in cognitive processing – the time it takes a person to process an idea or come up with an answer – the results show that such physical activity can only delay memory loss if people begin exercising before the onset of symptoms."
Neil
Photo: Of course there's nothing wrong with having a well earned rest during your exercise at appropriate points in your exercise routine...