Is it true that during meditation or contemplation glands in the brain secrete a chemical that helps them live longer?

Question: Is it true that during meditation or contemplation glands in the brain secrete a chemical that helps them live longer? Or has it been studied?

Asked by rheanna040595 to Darren, Deuan, Duncan, Lori-An, Michelle on 24 Jun 2010 in Categories: General.
- Darren Nesbeth answered on 18 Jun 2010:
  
  I don’t know. I could Google it. But so could you…
- Lori-An Etherington answered on 21 Jun 2010:
  
  I don’t know enough about this area to give you a full answer however chronic stress has been linked to having a shorter lifespan and meditation is used to relieve stress so in this way meditation might be supposed to help people live longer?
- Michelle Hudson-Shore answered on 24 Jun 2010:
  
  I’m not really sure, I suppose that someone somewhere is looking into it. I would imagine that meditation does release things like serotonin which has effects on mood and other brain and body functions so it will probably help to keep people happy and calm which in turn will make them less stressed so might extend their life a bit.

Question: Is it true that during meditation or contemplation glands in the brain secrete a chemical that helps them live longer? Or has it been studied?