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Why the FR945 changed my life! A big thanks to Garmin

For almost 7 years Im a runner now. Ran a sub 40 min on the 10k, 1.27 on a half and 3:15 on the full marathon. But besides my sporty lifestyle I was ruining my body by drinking alcohol 4/5 times a week. I always knew that it wasnt good for me but hey, I run so much and Im a fanatic cyclist so whats the deal!!?

But since january I started to analyse my heart rate on my garmin FR945. I bought my FR945 directly after launch but I never actually read my heart rate analysis during work and sleep. But since january I decided to start monitoring actively my heart rate during the day and since then... I was shocked to the impact of alcohol on my heart rate. Normally my heart rate is about 40-45, when having one or two drinks it increases to 60!! Also when I was a night out, the whole night drinking my heart rate even get 80, and 60-65 during sleep! Normally it decreases to 35-38. I was so in shock especially to the impact of 1 or 2 beers! Ofcourse I was aware of the negative impact of boozing the night through but wow the impact of 1 or 2 cans...

Thatswhy I decided to fully stop drinking and I never felt so good! My skin is better, have a better sleep, my stamina is increasing and im very curious to my upcoming race results, which is unfortunately, hard to measure due to Corona.

So thank you!!

  • I didn't notice the impact of alcohol so much on my resting heart rate, as I did with heart rate variability, stress and body battery.

    I like a good scotch, a nice wine or a cold beer to much to give them up completely, but I have learned the significance of trying to keep it to just 1 drink.

  • After 1.5 to 3 liters of beer in the evening I fall asleep very quickly and sleep like dead till late morning, but my body battery according to my FR945 increases by no more than 15-25% compared to 65-75% when I don't drink

  • Take a look at the Body Battery with the HRV stress overlay, and you can see why your body battery is not recovering while your body is processing the beer.

  • I also enjoying a cold beer after a hard workday or a massive MTB ride and found it to interrupt my sleep by gaining tool little body battery usually when I drink it too late in the day.

  • Thats what I also noticed, impact is huge on body battery. I dont mentioned it in my post because I still dont know the relevance of it. 

  • Yep! I'm not a regular drinker, maybe once a week TBH, but even a beer with dinner and my resting heart trate the next day is same as for you - up by 10-15bpm. 

  • Drinking inhibits sleep so by default body battery shouldn't fully recharge after a night on the cans

  • This is odd. Alcohol is a depressant so I'm not sure why your heart rate would go up. I have a glass of wine or other beverage every day and don't notice any increase in HR, which my Vivoactive 3 tells me is 52 at rest. Perhaps because I have low blood pressure. Who knows? I used to (in my 40s and early 50s) post your running numbers but gave up running at 58 and just cycle now. BTW, what's your VO2 max? Back in the day mine was lab-tested at 62. Garmin tells me it's now 47, at age 65, though I feel  it should be about 50.

  • Wow! I drink (a glass of wine) daily. My rHR is currently 52, slowly declining from a typical 54-55 as I bump up my cycling load over the past couple of months. But I can't imagine it dropping by 10-15 if I stopped drinking. That would put me in danger territory, I imagine, especially at age 65.

  • Yep, I've found this too. I only really drink on a Saturday night but my RHR is always about 10% higher on that night (similar to the night after a hard race). I put it down to the alcohol dehydrating you overnight but that's just a very uneducated guess!