Fun with ADHD (and dycalculia) Some days, I cannot for the life of me do the math of how much weight I need to add or take away on my deadlift barbell. This is especially true if I have a bunch of plates on and then need to lift an odd number. I'll be in there about to lift over 60kg beating myself up because I can't figure it out. In that moment, all I can think about is when I was a kid and my parents and teachers would get so damn frustrated that I couldn't do "simple calculations."