Ever since I came down with CFS I have been stressed out by mental work. My homeopath recently recommended Kali Phos 6X. I have been amazed by the results in my case. I take just one tablet a day. Things that used to stress me out (like arguing with the car mechanic, ATT, Comcast, etc.) have subsided from a 10 down to a 3. I just finished a complicated chapter in my new book that I had been putting off for months because I just did not feel like tackling it. I have also been able to prepare the house for winter, which is something else I had been putting off. I still have physical fatigue (I can usually only work half days) but the mental fatigue and stress is greatly diminished. I also have some improvement in sleep.