Growing human organs inside pigs moved forward in labs, but not in Washington. That divide explains why gene-edited pig kidneys are now transplanted into people, while federally funded efforts to grow fully human organs inside pigs remain blocked.

Researchers at the University of Sydney have uncovered new evidence showing that type 2 diabetes directly changes the heart's structure and how it produces energy.

A team of American scientists is claiming to have accomplished something previously thought impossible: reversing Alzheimer's symptoms in lab mice.