Scientists hail earwax test for checking stress hormone levels

Researchers say cortisol sampling technique could transform diagnostics for people with depression


A test that uses earwax to measure levels of the stress hormone cortisol could “transform diagnostics and care for millions of people with depression or stress-related conditions”, scientists have said.

The researchers believe the test, which can be done at home without clinical supervision, may also have the potential to measure glucose or Covid-19 antibodies that accumulate in earwax.

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