Hi
I found this article really useful and it then led me on to another on the Beeb website about a short nap improving memory too.
news.bbc.co.uk/1/hi/health/7254555.stm
When we do our train the trainer workshop we run an active post lunch session on day 1 but on day 2 we encourage everyone to take a short 'day dream', which technically we call a visualisation, but it amounts to giving people permission to zone out, zizz, snooze or whatever they want. A number of people have reported increased alertness in the afternoon that follows and they almost all enjoy the opportunity to really relax. So next time I'll make sure it's 6 minutes long (get the stop watch out Ann!).
Regards,
Stella Collins