Here's some info (Google is Your Friend -- "sources of serotonin")
http://www.cure-your-depression.com/natural-source-of-serotonin.html

As you've discovered, exercise also produces serotonin.

As I understand it, the anti-depressants classed as SSRI (Selective Serotonin Reuptake Inhibitors) prevent or slow down the body's re-absorption of serotonin once it is produced.


Age 67 1/2
Ventral Tongue SCC T2N0M0G1 10/05
Anterior Tongue SCC T2N0M0G2 6/08
Base of Tongue SCC T2N0M0G2 12/08
Three partial glossectomy (10/05,11/05,6/08), PEG, 37 XRT 66.6 Gy 1/06
Neck dissection, trach, PEG & forearm free flap (6/08)
Total glossectomy, trach, PEG & thigh free flap (12/08)
On August 21, 2010 at 9:20 am, Pete went off to play with the ratties in the sky.