Home Videos Neuroscientist: This is Killing Your Focus and Shrinking Brain Cells EVERY Day Neuroscientist: This is Killing Your Focus and Shrinking Brain Cells EVERY Day Supplement Guy Apr 18, 2026 comments off Tweet on Twitter Share on Facebook Pinterest This is my first link This is my second link This is my third link adult ADHD attention deficit attention span concentration practice doom scrolling dopamine dopamine baseline dopamine detox dopamine reset focus how to focus how to stop doom scrolling methylene blue multitasking myth negative attachment nervous system regulation nicotine focus parasympathetic nervous system phone addiction scott sherr short form content social media addiction sympathetic nervous system task switching thomas delauer troscriptions