You hit 140 in traffic? Wow.<p>Resting HR is tricky - I wouldn&#x27;t consider myself a gym rat but I do run a few times per week and I ride my bike for fitness so I spend far longer than 1 hr above 150 per week.<p>My resting HR is low 40&#x27;s. I might hit 65 in traffic....<p>Cool stuff though. Eager to try it.