Meditation helps maintain a better quality of life with every day wear & tear ie : stress.  No surprise that the same is true with the extremes of PTSD.

WAR VETERANS HAIL MEDITATION AS BENEFICIAL, COST-EFFECTIVE POST TRAUMATIC STRESS DISORDER TREATMENT
http://au.news.yahoo.com/latest/a/-/latest/18011236/war-veterans-hail-meditation-as-beneficial-cost-effective-post-traumatic-stress-disorder-treatment/

Meditation may not get you enlightened (whatever that is) but it is definitely the ultimate stress reducer.

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“Had to have a few days break from the meditation – but really noticed the difference, so back on it again twice a day!!! My partner even commented that I seem to swear less if I’ve meditated! A quick question for you though. Yes the exhaustion has shifted. I seem to need less sleep – is that an expected effect? Just nice to reduce my anxiety levels. It seems to do the trick after about 10 minutes … and keeps me more settled throughout the day.”

Worth every penny!

Rebecca ~ Berks