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Harvard, MIT boffins ink up with health-monitoring 'smart' tats


"This incentivizes users to maintain care for their health and by extension, maintain desirable aesthetics of the tattoo"

So the tattoo turns ugly if you don't look after your health? Are the people who are most bothered by the aesthetics, rather than the health implication the first people we want to help?

I can't tell from the article how helpful this is to the colourblind - draw a thermometer on my arm that fills up when I need to eat/drink/medicate by all means, but an apple that turns from green to red is no help.

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