Question to the Cabinet Office:

To ask Her Majesty's Government what assessment they have made, if any, of the effects of jet-lag on ministerial decision-making at all levels.

Ministers, on occasion, are required to travel abroad for government business to enable the delivery of the government’s objectives. In cases where a Minister is required to travel long distances across time zones, flexibility in internal departmental travel guidance exists to enable ministers to travel more comfortably.

This exists to mitigate the side effects of jet-lag and tiredness and ensure that efficiency, judgement and concentration are not negatively impacted. Departments publish details of overseas flights on a quarterly basis on GOV.UK at https://www.gov.uk/government/collections/ministers-transparency-publications.