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Leon Lack

Leon Lack, Emeritus Professor at Flinders University in Adelaide, Australia, is a Clinical Psychologist at the Adelaide Institute for Sleep Health (AISH). He is acknowledged internationally as one of the world’s leaders in behavioral management of insomnia and has conducted extensive research in sleep, circadian rhythms and insomnia over 30 years. For the last 20 years, he has directed a clinic for the non-drug treatment of insomnia at AISH and has supervised many clinical Masters and PhD students in this area. He was a co-founder of the Australasian Sleep Association and its president from 1989 to 1992. Leon is also the author of 80 peer-reviewed journal articles and has received research grants from bodies including the Australian Research Council and National Health and Medical Research Council. He earned his PhD from The University of Adelaide and received his Bachelor of Arts from Stanford University.


All too often a doctor will prescribe sleeping pills to a patient presenting with insomnia. While sleeping pills can be an appropriate short term solution for some patients, they do nothing to address the underlying cause of the patient’s insomnia.

In the short term, sleeping pills mask the underlying cause. Over the long term, sleeping pills may create more complications through side effects and dependency.

By failing to treat the underlying cause, the patient...

Anyone who has travelled long distances knows the debilitating effects jet lag can have on one’s body and mind.

Not only can crossing time zones leave a person tired during the day or wide awake at night, it can cause irritability, fatigue, difficulty focusing, impaired judgement, decreased productivity, and memory lapses. And it’s not just because of poor sleep on the plane and dehydration from the altitude—the feelings persist for several days.

Jet lag is...