"well it started in 2014 when i was diagnosed with adhd.... and i could not focus for more than 5 minutes before doing something else and this has helped me greatly focus and calm me down.  we also own a farm and i drive a skid steer loader and drive a tractor, also doing fieldwork takes a good deal of focus and now i can easily do 5 hours of bale loading and not get distracted which is a lifesaver. one downside is that i lose my appetite but not a big deal to me."