Cardiology

Tension makes the heart grow stronger

By taking videos of a tiny beating zebrafish heart as it reconstructs its covering in a petri dish, scientists have captured unexpected dynamics of cells involved in tissue regeneration. They found that the depleted heart ...

Medical research

Tension triggers muscle building

Skeletal muscles are built from small contractile units, the sarcomeres. Many of these sarcomeres are connected in a well-ordered series to form myofibrils that span from one muscle end to the other. Contractions of these ...