Tattoos could be the future of tracking your health

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Harvard researchers testing tattoos that can track your health. (KTRK)

Harvard researchers are testing tattoos that could one day track your health.

The ink is designed to change color according to changes in a person's biochemistry.

For example, if glucose levels increase the green ink will darken or change to brown.

The researchers hope their tattoos can one day help people better monitor their health.

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