Pre-conditioning protection in the brain.

Presents a commentary about "pre-conditioning" in the brain. Description of "pre-conditioning" as a brief period of ischaemia that reduces brain damage in a prolonged attack; Potential therapeutic importance of pre-conditioning in the cardiac field; Induction of similar phenomenon in the Central Nervous System (CNS); Role of adenosine receptors; Exploration of the relationship between ischaemic preconditioning and related paradigms in the use of chemical stimulus to induce tolerance as a research possibility.