Dogs are renowned for their sense of smell. For centuries doctors have know diseases have characteristic odours which, dogs may be able to detect. Cancer cells release small amounts of volatile substances. Cancer Detection Dogs are being trained to detect these volatiles, it is hoped that this work and research will enable scientists to develop an early cancer screening system.

Medical Alert Dogs are trained to assist individuals who manage complex medical conditions on a day to day basis. Dogs are taught to identify the odour changes that are associated with certain medical events. For example for someone living with diabetes, hypoglycaemia (low blood sugar) or the avoidance of it can be a daily problem. Symptoms can vary from confusion, seizures to comas and be life threatening. Medical Alert Dogs are trained to recognise blood sugar levels outside the normal range. Dogs, once trained, can warn and get help before the symptoms are felt. They will bring their owner any necessary medical supplies such as glucose and blood testing kits and get help if necessary. They can also be trained to push alarm buttons.

Medical Detection Dogs provide alert dogs for those with other very dangerous health conditions including Addisonian crisis which causes severe pain, convulsions and unconsciousness. Pain seizures which lead to collapse and hospitalisation. Narcolepsy, a malfunction of the sleep/wake regulating system which causes sleep attacks and paralysis.

They are continuing to investigate other debilitating and potentially fatal conditions which dogs may have the ability to help with. These include severe allergic responses and migraines proving dogs really can be "man's best friend"!