For mature people - this worked, however I had a disconcerting whoosing sound in my right ear for half an  hour. I will use this again  - I suffer from depression and couldnt get going for the day - I had drank an energy drink and slept another hour I then had a vodka and coke - science would say - well thats what woke you up. My personal experience was that the beats gave my brain the impetus to WAKE UP - I got changed had a shower and tidied up and washed my clothes - within the hour of feeling that life wasnt worth living. Be careful with your hearing. From a scientific VP - I would go from alpha to Beta much faster. . I  look forward to what else happens. I am glad I stopped after 5 mins - it was affecting my long time hearing.
I'm not a doctor, but I'm pretty sure that vodka isn't helping with depression, friend. Nutrition has a dramatic long-lasting effect on mood. Suggested reading: https://www.amazon.com/Brain-Changer-Good-Mental-Health-ebook/dp/B07K9LZPNL
MARSBELLA1