The ‘Executive Functions’ (EFs) of inhibitory control, working memory, and cognitive flexibility enable us to think before we act, resist temptations or habitual reactions, stay focused, mentally play with ideas, reason, problem-solve, flexibly adjust to changed demands or priorities, and see things from new and different perspectives. These skills are critical for success in all life’s aspects. They are sometimes more predictive than even IQ or socioeconomic status. Understandably, there is great interest in improving EFs. It’s now clear they can be improved at any age through training and practice, much as physical exercise hones physical fitness. It also appears though, despite claims to the contrary, that wide transfer does not seem to occur and aerobic exercise per se does little to improve EFs. Important questions remain including: Are benefits just ephemeral and superficial? How much can EFs be improved and how long can benefits be sustained? What are the best methods for improving EFs? What about an approach accounts for its success? Do the answers to any of these differ by individual characteristics such as age or gender? Since stress, sadness, loneliness, or poor health impair EFs, and the reverse enhances EFs, I predict that approaches that not only directly train EFs but also indirectly support EFs by addressing emotional, social, and physical needs will be the most successful at improving EFs.