Sources: How And When To Be Your Own Doctor
Then there's the unrelenting boredom of fasting. Most people have
been media junkies since they were kids; the only way they believe
they can survive another day of fasting is by diverting their minds
with TV. This is far from ideal because often the emotions of a
faster are like an open wound and when they resonate with the
emotions portrayed on most TV shows, the faster gets into some very
unpleasant states that interfere with healing. And the emotions many
movies prompt people to sympathetically generate are powerful ones,
often highly negative, and contrary to healing. Especially unhelpful
are the adrenaline rushes in action movies. But if TV is the best a
faster can do, it is far better that someone fast with television
programming filling their minds than to not fast at all. I keep a
library of positive VHS tapes for these addicts--comedies, stories of
heroic over-comings, depiction's of humans at their best.
Boredom is probably the most limiting factor to fasting a long time.
That is because boredom is progressive, it gets worse with each
slowly-passing day. But concurrently, the rate of healing is
accelerating with each slowly-passing day. Every day the faster gets
through does them considerably more good than the previous day.
However, fasters rarely are motivated enough to overcome boredom for
more than two weeks or so, unless they started the fast to solve a
very serious or life-threatening condition. For this reason,
basically well people should not expect to be able to fast for more
than a couple of weeks every six months or year, no matter how much
good a longer fast might do.