There are various articles in the New Scientist about the naturalness of afternoon naps. There is a known tendency for there to be a second small peak in driving accidents due to nodding off in the early afternoon, matching the large one in the small hours. There are changes in the pattern of brainwaves at the time. Or that's my excuse.

There is a matching pattern of waking briefly in the night, historically recorded.

I am so taken aback by the knowledge of the sagginess of men's anatomy - this presumably is related to the habit of men of sitting on double bus seats in such a way that their legs are splayed apart and anyone on the other part of the seat has about nine inches to perch on. All my life I have regarded this behaviour as reprehensible, and now I learn it is a disability of old age. Oh dear.

Penny