12 votes

Your muscles keep time too. How circadian rhythms affect your workout and your health.

2 comments

  1. Omnicrola
    Link
    I found this really interesting. I recently (finally) managed to get myself going to the gym a few times a week, and had noticed it did seem harder (and it's all hard right now) at different times...

    I found this really interesting. I recently (finally) managed to get myself going to the gym a few times a week, and had noticed it did seem harder (and it's all hard right now) at different times of the day. Although I think for me personally it's because I'm often chronically dehydrated.

    Some interesting bits:

    Circadian rhythms involve more than just the central clock in the brain, because every organ and tissue has its own molecular timekeepers, what scientists call peripheral clocks.

    This was new information to me, I thought it was mostly a brain thing.

    "Just because the afternoon is the best time, on average, over a certain population does not mean that it's the best time for every individual," he says.

    "The phase of the clock is trainable," and that can be shifted to potentially maximize your performance, she says.

    The study is yet to be published and has limitations — it would be hard to pull off the same carefully controlled and invasive experiment in humans. But the idea that consistency matters is echoed in the human data, as well.

    Glad to know I'm not stuck to always have to put more effort in whenever I go to the gym at the not-usual time.

    "If we can learn how to synchronize the circadian system better, we could potentially prevent some of those health issues or help ameliorate them," says Shawn Youngstedt, a chronobiologist at Arizona State University.

    This guy wins the "most awesome sounds-like-scifi job title of the week" award.

    Lots of other interesting observation and speculation in the article, it was a good read.

    14 votes
  2. Notcoffeetable
    Link
    Apparently my employer blocks NPR (but not bloomberg). Will have to read it later. I'm not entirely surprised by the summary posted by u/Omnicrola but it's great to have confirmation. I find that...

    Apparently my employer blocks NPR (but not bloomberg). Will have to read it later. I'm not entirely surprised by the summary posted by u/Omnicrola but it's great to have confirmation. I find that 2pm is my preferred time to work out. I track a lot of data for my workouts and those mid-afternoon workouts are much easier than my typical 7pm sessions. In fact I would rate it Afternoon > Morning > Evening. Partly because in the morning I can justify stimulants (caffeine/beta alanine).

    6 votes