The BBC report a drug developed by the University of Aberdeen has shown "an 81% difference in rate of mental decline compared with those not taking the treatment".
Combined with the news that HIV is now effectively a chronic condition like diabetes, this is an interesting week in health news.
On a (very slightly) related note, my leg has been getting better. I was planning on ditching the crutch next Monday. But today I may have overdone things a bit, so I'll have to see how far it's set me back.