Extract from the Telegraph:
"The 36-year-old, who appears on the BBC show Top Gear, suffered a brain injury when he came off a runway in the vehicle at 280mph in 2006.
Assuring viewers that he had not suffered long-term brain damage, Hammond said: "The only difference between me now, and before the crash, is I like celery now."
An American team reports that brain inflammation of the kind he suffered is reduced by luteolin - a compound found in celery, green pepper, parsley and chamomile.
It belongs to a family of anti-inflammatory molecules called flavonoids, which have been shown to help counter the dementia caused by brain inflammation."