20 people die waiting for an organ transplant every day in the US, but lab-grown organs so far lack the cellular density and functions required to make them viable replacements. The new SWIFT method from the Wyss Institute and Harvard SEAS solves those problems by 3D printing vascular channel networks directly into living tissue constructs, enabling the creation of larger tissues approximating the size and function of organs.
For the microscopic lab worm C. elegans, life equates to just a few short weeks on Earth. The bowhead whale, on the other hand, can live over two hundred years. Why are these lifespans so different? And what does it really mean to ‘age' anyway? Joao Pedro de Magalhaes explains why the pace of aging varies greatly across animals.WATCH NOW