Do brain games really work or is it just marketing?

The debate over brain game effectiveness has been settled with nuance. What works: Brain games reliably improve performance on the specific tasks they train. Playing memory games improves working memory. Playing speed games improves processing speed. Playing logic puzzles improves deductive reasoning. These near-transfer effects are well-documented. What is overstated: Claims that brain games make you generally smarter or prevent dementia. Far-transfer (improvement in untrained cognitive tasks) is limited. The landmark 2016 statement signed by 70 cognitive scientists concluded that brain games improve trained skills but evidence for broad cognitive enhancement is weak. Recent developments: A 2023 study using adaptive brain training protocols showed more promising results than earlier studies, with measurable improvements in daily cognitive tasks. The consensus is shifting toward cautious optimism. Practical recommendation: Play brain games for the skills they directly train. Sudoku improves logical deduction. Memory games improve working memory. Typing games improve typing speed. These are genuine skill improvements, not placebo effects. The key is consistency — 15-20 minutes daily produces measurable results within 4-6 weeks.