Apparatus and methods for delivering electromagnetic signals configured specifically to accelerate the asymmetrical kinetics of the binding of intracellular ions to their respective intracellular buffers, to enhance the biochemical signaling pathways plant animal and human molecules, cells, tissues, organs, portions of entire organisms and entire organisms employ for growth, repair and maintenance. Described herein are devices and methods that utilize repetitive bursts of waveforms configured to maximize the bound concentration of intracellular ions at their associated molecular buffers to enhance the biochemical signaling pathways living systems employ for growth, repair and maintenance. For example the systems and methods described herein may drive the binding of calcium to calmodulin (CaM), thereby enhancing the CaM-dependent nitric oxide (NO)/cyclic guanosine monophosphate (cGMP) signaling pathway.