| LONDON
- British researchers say the brains of people who commit
suicide are heavier than normal. A study by Emad Salib from
Liverpool University and George Tadros from the Northern
Birmingham Mental Health Trust is the first to report an
increase in brain weight in suicide victims.
Salib
and Tadros reviewed the coroners' records of people aged
60 and above, comparing the brains of 142 people suspected
of having taken their own lives with the brains of 150
people who died of natural causes.
The suicide group's brains weighed more averaging
1352 grams compared with 1238 grams for the natural causes
group (the difference being about the weight of an egg).
One
possible explanation is that depression may cause the
brain to swell. Other research has found that people who
are depressed and contemplate suicide have significantly
heavier adrenal glands.
But
the researchers say they need to do more research before
declaring the true cause.
The
report appears in the current issue of the British Journal
of Psychiatry.
|