Heart attacks are unpredictable. Normally, chest pressure is the common symptom but only few people had ever felt chest pains before the actual heart attack.
Many patients ignore it and usually delays hospital treatment by the average of two hours for the immediate medical response needed.
Heart attacks rarely appear out of the blue, even though most people believe so. Namely, days, weeks, and even months before a heart attack occurs, your body will give you some warning signs. And one of the signs can be found in your hair: your hair will contain higher levels of the cortisol hormone, which is a warning sign of heart attacks!
High levels of cortisol can usually be measured through blood, urine or saliva samples in days/hours before a heart attack occurs, but the hair is entirely different. Hair samples can show high levels of cortisol weeks or months before your heart attack occurs. One 6-inch strand is enough for this purpose.
This was proven by a research that focused on analyzing hair samples from 56 people who had a heart attack and then comparing them to hair from people who never suffered a heart attack, but had other health problems.