Humans have always dreamed of better, fitter, longer-lasting bodies. But while many science-fiction fantasies, from videophones to self-driving cars, have been realised, health technology has lagged behind. Artificial organs and smart pills have been a long time coming.
There are a number of reasons. Biology is an order of magnitude more complicated than other forms of engineering. And it is hard to innovate in health, as there are many rules to protect us from products that might otherwise kill us. The pill or device that promises a longer life needs to prove that it actually works before it can be sold. The price of patient safety is sluggish innovation.
Yet, despite these obstacles, there are signs that a digital revolution in health care is imminent. It will be more personalised, and potentially more useful, than anything the world has seen before.
Read more: Is there a doctor in my pocket?
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