I do seem to encounter overload when it comes to remembering names and numbers but I also know that I perform better than the youngsters when it comes to experience-based activities. This is encouraging - and also important to note in this era of youth-worship.
According to a report in the Wall Street Journal of a recent study on brain aging:
An emerging body of research shows that a surprising array of mental functions hold up well into old age, while others actually get better. Vocabulary improves, as do other verbal abilities such as facility with synonyms and antonyms. Older brains are packed with more so-called expert knowledge -- information relevant to your occupation or hobby. (Older bridge enthusiasts have at their mental beck-and-call many more bids and responses.) They also store more "cognitive templates," or mental outlines of generic problems and solutions that can be tapped when confronting new problems.
With the growing labour shortage in many western countries, these skills may be increasingly called upon. Already many governments have or are considering extended retirement limits.