DEPRESSION AND ANXIETY
sense that it feels awful but it serves a useful purpose. Specifically, they
say, the excessive rumination and withdrawal associated with depres-
sion can help a person find a solution to their problems. In support
of their claims, there’s research showing that low mood can harness a
highly analytical mode of thought, and that people with depression have
increased sensitivity to other people’s emotions. Inducing low mood in
research participants has also been shown to boost their performance on
memory tests and other tasks.
On a related theme, there’s also evidence for what’s become known
as depressive realism. Imagine you have to judge whether a switch
controls a light or not. Sometimes flicking the switch seems to turn
the light on and off, but other times it has no effect. In such a scenario,
Bipolar disorder
Far rarer than typical or “unipolar” depression, bipolar disorder is
associated not only with extreme lows of mood, but also periods,
lasting days to months, of intense exhilaration, energy and activity
known as mania. This state may sound appealing, but it can cause
problems such as chronic insomnia
and social inappropriateness, and in
fact occasionally manifests as excess
irritability rather than as a hyper-
positive mood. Mania can also
sometimes cross over into psychosis
when the surge of self-esteem
overflows into delusional beliefs of
invulnerability and omnipotence
(see Chapter 26).
Anecdotal evidence suggests
that bipolar disorder is experienced
more often by musicians, artists,
writers and actors than the general
population, and may even fuel bouts
of intense creativity. Historically,
composers like Tchaikovsky and
Handel are known to have experi-
enced extreme mood swings.
Modern-day celebrities diagnosed
with the condition include the
British writer and actor Stephen Fry
and the US film star and novelist
Carrie Fisher.
The actor, writer and general wit,
Stephen Fry. In 2006, Fry spoke
about his and others’ struggles
with bipolar disorder in a TV
documentary, Stephen Fry: The
Secret Life of the Manic-Depressive.