Causes of keloids and hypertrophic scars. Healing of the skin is a deceptively complex process involving multiple interactions of intracellular cascades and signaling. These processes include among other elements bio-molecules, lipids, calcium, growth factors, cell surface receptors, mast cells, injury signals and cytokines.
Incessant definition, continuing without interruption; ceaseless; unending: an incessant noise. See more.
The adjective vigilant means watchful, or alert and attentive to danger or trouble. An example sentence might be this one: The sentry remained vigilant throughout the night.