A blood test can predict actual age of human body

LONDON: British scientists have discovered a simple new molecular blood test which can now predict the actual age of the human body , different from chronological age. According to a team from King's College London, looking at “biological age“ is more useful and accurate than using a date of birth in predicting the rate of ageing in a human being.
Scientists are looking at biological age as a real predictor of healthy life.They say that a person who is 40 years of age might have a body of an 80-year-old due to poor lifestyle and vice versa. The new test looks for an ageing signature in our body's cells by comparing the behaviour of 150 different genes.
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It was developed by initially comparing 54,000 markers of gene activity in healthy but largely sedentary 25 and 65year-olds and then bringing them down to a final 150. Rather than looking for genes associated with disease or extreme longevity , the researchers discovered that the 'activation' of 150 genes in the blood, brain and muscle tissue were a hallmark of good health at 65. The researchers were then able to create a reproducible formula for `healthy aging', and use this to tell how well a person is aging when compared to others born the same year. The findings provide the first practical and accurate test for the rate at which individual bodies are aging.