Doctor Dmitry Bessudnov said that undergoing insulin and cortisol testing without medical justification because of fatigue, excess weight or stress is often of little benefit.
Speaking in Moscow on October 14, Bessudnov said the results of routine insulin tests are frequently misinterpreted. According to the doctor, the test does not show insulin resistance, and an abnormal result does not always require a change in the treatment approach.

A single cortisol measurement does not show stress
Bessudnov said that the public’s perception of cortisol as the “stress hormone” leads to misguided expectations, adding that many people undergo testing to learn their stress levels.
Bessudnov noted that a single blood cortisol measurement does not provide information about a person’s stress level. He said insulin and cortisol tests should be used not to determine stress or fatigue levels, but when specific medical indications are present.
Tests are meaningful under appropriate conditions
The doctor stressed that the tests in question, which are often ordered without sufficient justification, provide no benefit when used in this way. Bessudnov said the problem is not that the tests fail to provide information, but that they are used for purposes other than those for which they are intended. He added that insulin and cortisol measurements can provide important information when there is proper medical justification, the tests are conducted under appropriate conditions and the results are assessed by a specialist.