In a word, yes! The recent large scale research carried out by Harvard University has shown that with just one session of Reiki, statistically significant improvements were reported for pain, anxiety, depression, nausea and fatigue. Here is a link to the study:
Effectiveness of Reiki – Harvard Study
So if one session can do all that, imagine what the possibilities are if you make Reiki a regular part of your toolkit of self-care?
I always encourage clients to book regular sessions if that is possible for them, be that weekly, fortnightly or once a month. A top-up of Reiki is a wonderful thing.