Mental Diet – Simon Arias – GRIND Messages By thoughtspacewebsites | March 19, 2018 | 0 Watch my latest GRIND message, “Mental Diet” Just like how the food you eat impacts your physical health, the things you feed your mind heavily impact your success. Get that mental diet right & let’s GRIND! Posted in G.R.I.N.D. TM Season 2, Latest Videos, Simon Arias Blog