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best websites for
information on
Heart Rate
Variability (HRV),
Heartbeats, and
Autonomic Nervous
System (ANS)
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ANSWatch - a
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Intellectual Property and Rights - Sun Scientific Corp.

  • 心律大師 (Registered trademark in Taiwan)
  • ANSWatch (Registered trademark in USA)
  • Taiwan Patent   # 176323 - Non-invasive radial artery blood pressure waveform measuring
    apparatus system and uses thereof (Inventors: D.C. Sun & B.J. Kuo)
  • US Patent #6,811,536 -Non-invasive Apparatus and System for Monitoring Autonomic
    Nervous System and Uses Thereof (Inventors: D.C. Sun & B.J. Kuo)
  • US Patent #7,074,1990 -Non-invasive Apparatus for Monitoring Drug Hepatoxicity and Use
    Thereof (Inventor: D.C. Sun)  
  • Taiwan Patent # I 323652 -Non-invasive radial artery blood pressure waveform measuring
    method and uses thereof (Inventors: D.C. Sun)
  • US Patent -Non-invasive Blood Pressure Waveform Measuring Apparatus System and Users
    Thereof (Application # 11/066,291; Inventor: D.C. Sun )
  • China Patent -Non-invasive radial artery blood pressure waveform measuring method and
    uses thereof  (Application # 200510085396.5; Inventors: D.C. Sun)
  • Taiwan Patent – Apparatus  for Measuring Opening and Closing Functions of a Heart Valve
    (application #99113624; Inventor: D.C. Sun)
(professionals and
individuals) for
experience sharing and
in-depth discussions at  
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Do you have     
- are you monitoring   
- are you taking
prescription drugs?
- are you aware of drug
side effects on ANS?
- self-improvement tips
Read more......
Feeling dizzy      
or even fainted?
- are you low in blood
pressure or heart rate?
- are you taking
prescription drugs?
- You may experience
Baroreflex failure
Read more......
Irregular heartbeats?
- often noticing abnormal
heartbeats (missing,
uneven, or super-fast)?
- Yo might have cardiac
- Most sudden death
events are preceded by
irregular heartbeats
Read more......
Mitral Valve Prolapse?
- Mitral valve is the
bicuspid valve between left
atrium and ventricle
- If mitral valve is not
closed properly (called
mitral valve prolapse
MVP), the blood may
backflow during pumping
- there is a strong
connection between panic
attackes and MVP
- How to detect it?
Read more......
- autonomic nervous
system works to fine tune
body conditions depending
on physiological needs
- ANS consists of two
branches: sympathetic and
- do you have balanced
- what are the symptoms of
Read more......