Recent quotes:

Mid-life resting heart rate of 75 plus beats/minute linked to doubling in early death risk: And rise in rate for those in their 50s linked to heightened heart disease risk over next 11 years -- ScienceDaily

But a resting heart rate of 75+ bpm in 1993 was nevertheless associated with around a twofold higher risk of death from any cause, from cardiovascular disease, and from coronary heart disease, compared with a resting heart rate of 55 or below. And a resting heart rate that was stable between 1993 and 2003, when the men were aged 50 to 60, was associated with a 44 per cent lower risk of cardiovascular disease over the next 11 years compared with a resting heart rate that had increased over this period. What's more, every additional beat increase in rate was associated with a 3 per cent higher risk of death from any cause, a 1 per cent higher risk of cardiovascular disease, and a 2 per cent higher risk of coronary heart disease.