As an airline captain, I often times find myself working in challenging environments which requires quick thinking and accurate decision making. Switch has become a game changer in the mental clarity department. I'll agree with some of the other reviews that speak about the brain fog being lifted. That's exactly what happens... it feels like my mind is sharp even under stress or fatigue.At home, switch has allowed me to be more productive. Juggling busy schedules with 3 kids and keeping up with everything else that comes with running a home can be a challenge for anyone. Now, throw in traveling for work and you've got a recipe for things to unravel even further. Switch helps me to stay on task and to make the most of my time at home.I've been using Switch regularly since it hit the market and don't see myself stopping any time soon. It's been one of the best tools in my tool kit.