Just about to leave my office when I check the BBC website and get filled with gloom. Or should the breaking news simply explain my experience of the last few years? Some American professor has done some research and discovered that ‘reasoning, speed of thought and spatial visualisation all decline in our late 20s. Oh great!

Apparently our brains start to decline at around the age of 27 after hitting the peak of mental power at 22. This puts me almost 30 years into decline already. In fact, I’ve now had more years declining than I had improving.

Does this explain why I have now started on Twitter: I only have to worry about 140 characters at a time?

I need to go home and lie down in a darkened room.