我的一个老外同事有睡眠问题，要了一个配方，后来她告诉她认为有效，并说她不喜欢药丸

Of course, she doesn't spend as much time as I do. I am that type of person - if I decide to do something or try something, I will do it well.

That's why I said if he is interested, that means he has to really do it, try it. Not just 10 min per day. :)