[kgr]

Fluffy's post about physical fitness triggered a more general question for me:
What contributes to better concentration at the bridge table?
Exercise (always concentrate as good possible) seems logic, but are there other factors? (...don't concentrate when dummy , caffeine, no alcohol, nicotine, make sure you face the window iso nice girl at the bar....)?
 
Remark: I often think when the trick is closed: What card did partner play, Did he play the 2 or the 5?

[hrothgar]

Space out your food intake

Make sure, at all costs, to avoid sugar spikes and crashes. Small scale grazing across the course of the days is MUCH MUCH better...