Mental relaxation is vital to the nervous system and the rest of the body. Without it we get stressed and anxious. Long term stress and anxiety can then lead to depression as the system becomes exhausted from the continual energy demands of anxiety.
Mental relaxation is different to just sleep, though good quality of sleep is vital too.
It can take a number of forms - listening to music, going for a walk or specific and powerful mental relaxation methods like meditation (best learned from a teacher, though some books are good).
We recommend that you explore which approach suits you, and get started! Adding mental relaxation to your self help regime, will bring great dividends to your life, health and well being. In addition it will help us in treating you, as your tissues will gradually become more responsive to osteopathic treatment as they become less stressed and tense (sadly, we all have some stressed and tense tissues).