Mindfulness meditation is one of the pillars on which my life rests. If you have never done it before, realize that it's hard, especially if you fall anywhere on the ADHD spectrum, and it's just brutal for the first few weeks for anyone. As your brain becomes more still and your focus improves you'll notice your productivity improve. As the mental chatter drops you'll also notice the problems in your life, that you've ignored or been too distracted to see, impeding your ability to meditate. Only working to fix them will allow you to continue, but you'll be better off for it.

I rarely talk about meditation in professional circles because, for one, people think it's weird or have a preconceived notion of what it is, but more so it's so damn effective that it's seriously my secret weapon in life and part of my competitive edge. (As an aside, it has nothing at all to do with "strange religions", vegans, or yoga pants.)

Start slow, 10 minutes a day for a week, then add 5 for the next week, and so on, and don't rush. Take it seriously and don't disrespect it. I simply cannot recommend it enough.