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your stress and energy levels with the help of heart rate variability algorithms
how your diet, sleep, work patterns and habits affect your wellbeing
your lifestyle so that you can feel great and make the most of every day
The problem is:
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If you are a shift worker or someone who has short sleep chronically, this could be a reason that these groups have a higher incidence of cardiovascular disease and diabetes and all sorts of things. It could be related to sleep duration.Heart rate variability has been shown to be a good measure of cardiovascular risk.

Siobhan Banks, PhD, research assistant professor in psychiatry in the school of medicine at the University of Pennsylvania, in Philadelphia, and lead author of the study presented here at SLEEP 2007: the 21st Annual Meeting of the Associated Professional Sleep Societies.

Siobhan Banks

Heart rate variability is quite simply the variation in the interbeat intervals of our heart,” “It is a very sensitive index of the health of our body’s stress response systems. It’s one way to measure the health and fitness of the fight or flight system.

Dr. Arpi Minassian, an associate clinical professor of psychiatry at the University of California, San Diego.

Dr. Arpi Minassian

When the body experiences stress, for example, from exercise or extreme temperatures, — it can maintain a stable blood pressure and constant body temperature in part by dialing the heart rate up or down. And HRV plays an important role in maintaining this balance. A familiar related problem is in driving. To get to a destination despite varying weather and traffic conditions, any driver — even a robotic one — will change factors such as acceleration, braking, steering, and wipers. If these factors suddenly became frozen and unchangeable while the car was still moving, it would be a nearly certain predictor that a crash was imminent. Similarly, loss of heart rate variability predicts some kind of malfunction or ‘crash,’ often before there are any other indications.

John Doyle, professor of control and dynamical systems, electrical engineering, and bioengineering at California Institute of Technology (Caltech).

John Doyle

Whenever you want to nurture innovation, you need to have metrics… The reason HRV was chosen was… one, we have decades worth of heart rate variability data…. there is good cohort data, population level data, that suggests that declining HRV is also due to a chronologic age…. [and] unlike most biomarkers in health, HRV can be measured continuously, contextually. You can measure it for 24 hours.

Dr. Joon Yun. Dr. Yun is managing partner and president of Palo Alto Investors,LLC, which oversees 1.8 billion dollars in assets invested in healthcare. Dr. Joon Yun is board certified in Radiology, was clinically trained at Stanford and received his M. D. from Duke Medical School. He has published numerous scientific articles, and has a column in Forbes magazine. Recently, he agreed to sponsor the Palo Alto Longevity Prize by donating 1 million dollars to this life-science competition.

Dr. Joon Yun
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