Need a quick overview about POTS:
This article from Circulation by the American Hearth Association provides a good overview of POTS.
Need more knowledge:
The Dysautonomia Information Network is a non profit organization that has a great page with lots of information and a very good forum, see www.dinet.org. It is also worth following them on Facebook and Twitter.
The DINET organization has also made a very good and informative documentary called “Change: Living with Postural Orthostatic Tachycardia Syndrome” which can be viewed on Youtube. This is also a good video to show to family and friends to make them understand what you are going through.
Another site working for POTS awareness, this time in the UK, is: www.potsuk.org
www.dysautonomiainternational.org a non-profit organization that work on spreading awarness, helping patients and raising funds for research.
Professor Carrie Brudzinski has made a great and thorough video that is explains how the nervous system is affected by POTS that is available on YouTube.
POTS or PoTS
And here you can find an article about why some call it PoTS (Postural tachycardia syndrome) and other call it POTS (Postural orthostatic tachycardia syndrome)