Resting Heart Rate and mortality

Men with a resting hearth rate (RHR) of over 75 beats per minute at 50 years of age have twice as high risk of all-cause death, cardiovascular disease and coronary heart disease during 21 years of follow-up compared with men with RHR of 55 beats per minute or below[1]Impact of changes in heart rate with age on all-cause death and… Continue reading Resting Heart Rate and mortality

Using HRV to reduce stress and improve training

The top athletes having been using HRV for the past couple of decades to improve their training to higher performance levels. Here’s how they do it. After putting in months of diligent base training, the racing season approaches. Most athletes follow a training plan. The basic training process isn’t complicated. Assessment: Ability and event demands;… Continue reading Using HRV to reduce stress and improve training

Smallpox

The pandemic with the highest mortality rate in the era before the 18th century was smallpox.  In England. 10% of deaths were due to the infection.  It had been known in ancient China, India and Africa and may have reached Greece and Rome in classical times. It certainly affected the Crusaders, who brought it home… Continue reading Smallpox

RMSSD by age and gender

The HRV Health system produces a metric called “Percentile” which reflects the percentile into which the RMSSD result fits, relative to the general population by age and gender. This is the base data that our algorithm uses to produce the Percentile result. RMSSD and HRV Score by age and gender[1]Short-term heart rate variability–influence of gender… Continue reading RMSSD by age and gender