I bought this mainly to help me sleep, which I struggle with due to an overactive mind brought on by anxiety, and associated inability to switch off. The vibration, when held in my hand or to my chest is comforting to start with. On my first night of using it I felt my mind was untroubled as I just concentrated on the pattern of vibration and breathing. I set it aside and fell asleep very easily for first time in a long time. It is working consistently for me, more than sleep sprays, herbal sleep aids etc. I get anxiety before work as my job is stressful and I use melo in the car before I walk in to work. It has helped here too. I am so surprised by how effective melo is as I was sceptical. Don't hesitate to buy!
Ayesha