Hair’s level of the stress hormone cortisol is a strong predictor of heart attack, according to a Canadian study.
Researchers at the University of Western Ontario in London, tested 3-centimeter long hair samples from 56 people admitted to a hospital for heart attack against hair collected from 56 people who were hospitalized for other reasons.
Those who had a heart attack had drastically higher levels of cortisol in the three months before the attack.
Cortisol surges through your body when you’re under stress, which can be the cause for a deadly cardiac event. And your hair contains an accurate record of your body’s production of cortisol.
Cortisol is usually monitored in urine and saliva but those tests reveal stress levels only at the time the sample is taken, so cannot show long-term patterns.
“We know that on average, hair grows one centimeter a month, and so if we take a hair sample six cm long, we can determine stress levels for six months by measuring the cortisol level in the hair,” explained Dr Gideon Koren.
The study appears in the journal Stress.
P.S. What about bald people? Maybe this applies to pubic or facial hair as well!!!
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