5 Matching Annotations
  1. Jun 2021
  2. Jul 2020
  3. Oct 2017
    1. Beta blockers have long been associated with sleep disturbances such as difficulty falling asleep, staying asleep, and insomnia. They have been shown to reduce the production of melatonin via specific inhibition of beta-1 adrenergic receptors. Melatonin is a hormone secreted by the pineal gland in the brain, and helps in maintaining normal circadian rhythms.6,20-21 People with hypertension already have a lower melatonin production rate than those with normal blood pressure.22

      The question becomes, then, do beta blockers impair sleep when exogenous melatonin is administered concurrently?

  4. Oct 2016
    1. Other smartwatches force you into nightly charging.

      Honestly, this has been a major point for me not to go with Apple Watch (even before knowing about the Pebble 2+ Heart Rate). Such small things but smart alarms and sleep tracking really do help me quite a bit.

    1. How does the heart rate monitor work? The Pebble 2 and Time 2 will use optical heart rate monitors that will monitor heart rate constantly during a workout.  When at rest or sleeping, heart rate will be monitored every 10 minutes, ensuring your resting heart rate is monitored with little to no battery life impact. The monitor will have no problem with sweat, but won’t provide heart rate readings when submerged in water. Please note:  Pebble devices with a heart rate (HR) monitor are intended to be a valuable tool that can provide an accurate estimation of the user’s heart rate. Pebble smartwatches are not medical devices and you should not rely on the accuracy of heart rate data for any purpose, especially for medical or health purposes.

      Straight from the horse’s mouth. We now know that heart rate monitoring on the Pebble smartwatches is as infrequent as the Apple Watch. Ah, well… What remains to be known is what “constantly” means, for workouts. Every second, as with Fitbit?