I just received the stick yesterday and had my first hydrogen water last night right before bed. I did not expect to feel anything for a couple of weeks but I felt difference in the same night. Things like this normally take over time to see the difference. I have issues with fatigue, insomnia, BM, chronic shoulder tension and am tired every single day. First thing I noticed was when I got up to go to bathroom in the middle of the night my shoulder felt a bit light. Which doesn't happen that easily even with a single massage session. It was a subtle lift in the heaviness of my shoulders. Then the biggest thing was I was able to wake up and get going right away in the morning. It normally takes me 45 min - an hour before I finally get up from the bed to get going on my day due to fatigue, lack of sleep and body tension. I haven't had a morning like this for years. I had another glass when I woke up in the morning and then around 1pm. I haven't had this much energy and feel of awareness for a long time. I am very excited to keep on drinking this water.