Peak Performance: Why do I need to avoid intense training 48hrs prior to my test?

Strenuous exercise can temporarily affect your hormone levels, which may lead to results that don’t reflect your normal baseline.
In particular, intense training can increase cortisol, a stress hormone, and cause short-term fluctuations in hormones like testosterone and thyroid hormones. These shifts are part of the body’s natural response to physical stress and recovery, but they can make it harder to interpret your test accurately.
By avoiding heavy training for 24–48 hours before your appointment, we get a clearer, more reliable picture of your usual hormonal state.