Christina Stephens is a practising occupational therapist, clinical researcher and peer educator chronicling her journey from foot crush injury to amputation and beyond. Here she tells us what it's like to walk with a prosthetic limb.
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E-cigarettes have become hugely popular in the past decade, but a rash of vaping-linked deaths and illnesses in the US is feeding caution about a product that's already banned in some places.
A new drug works by targeting an immune system antibody called immunoglobulin E, which is responsible for the allergic reaction that causes hives.