Oral title: The study of Active Galactic Nuclei variability on multiple timescales Oral abstract: The study of AGN variability on multiple timescales provide important insight into BH accretion physics and coevolution with the host galaxy. Galaxies with extended AGN photoionised regions are a great laboratory to study AGN variability over 100 kyr timescales, and allow to find AGN in the process of turning on or off. In this talk I will show how IFU observations of BASS sources, combined with high quality hard X-ray observations and BH demographic information, can help constraining the AGN lifecycle, and ultimately what is the physics driving AGN variability.