Everyone interested in PD and thyroid correlation: For what it worth, my mother (80) was diagnosed as having PD 2 yrs ago (how long she had it before diagnosing is open to question). She had a goiter operation when she was in her 20s so that would be a history of a thyroid problem (I don't know about her present thyroid condition). This may not be what you a looking for, but any correlation between thyroid activity and PD could prove beneficial in treating PD. Yatta Jacob ([log in to unmask])