New Delhi: Dr. Padmavathi R., professor of pathology at Madras Medical College, has been working in her field for over 20 years. Her career went up, and so did her back pain. As a pathologist, her day ...

A mouse’s heart beats roughly 600 times each minute. With every beat, blood pumping through vessels jiggles the brain and other organs. That motion doesn’t trouble the mouse, but it does pose a ...