Dr Chris Idzikowski has been a sleep specialist for 30 years.

克里斯•艾德辛科斯基博士是一位从业30年的睡眠疾病专家。

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Director of the Sleep Assessment Advisory Service in London, Professor Chris Idzikowski, said sleepwalking is very difficult to treat.

BBC: Sleepwalking is 'in the genes'

"The problem is people rarely do such acts under controlled conditions at a sleep clinic, " says sleep specialist Dr Chris Idzikowski, director of the Edinburgh Sleep Clinic.

BBC: Sleep: Weird things people do in their sleep

British Airways also created an online jet lag fighting calculator, where the advice is based on research by Chris Idzikowski, director of the sleep assessment and advisory service at Edinburgh Sleep Centre.

BBC: Online calculators combat jet lag