In a recent study published in the journal Nature Cell Biology, Dr. Elias Adriaenssens, Prof. Vincent Timmerman and colleagues have discovered a new function for a group of proteins called small heat shock proteins (HSPBs) in the human body. These proteins, which are found in the liquid (cytosolic) portion of cells, were found to play a critical role in the maintenance of the powerhouses of cells, the mitochondria.