Stress

Part of the Chinese philosophy behind acupuncture involves embracing personal peace. If you've really mastered that, we're having trouble imagining a job with less stress involved than being a traditional Chinese medicine practitioner.

 
Despite its popularity in China, there are still some there who seem to dislike acupuncture. (Source)

You're spending your days helping people with their problems. You're delicately placing painless needles into your patients to the dulcet tones of a babbling brook...mp3. You're filling an incense jar with lavender and speaking in your calmest voice. Not exactly talking down a hostage taker, now is it?

That being said, many acupuncturists work long hours—sometimes building their income by working for personal clients on the weekends when not at their Monday-to-Friday day jobs. It takes a fairly special sort of person to listen to the ills of others on a daily basis without an incredible amount of their own personal time to decompress on the side.