[durandal1]

Pretty sure the three main factors that decreases your ability to retain information is:

* Lack of sleep * Stress * Age

Usually all three hit at once, as our career peaks in intensity around our late 30s, while also having kids.

[hungryforcodes]

Late 30s is most certainly not old.

[durandal1]

As someone over 40 I tend to agree, but it's also old enough to notice the effects on memory retention.