# Why would I find it easier to run in the evening than in the morning?

**URL:** <https://boards.straightdope.com/t/why-would-i-find-it-easier-to-run-in-the-evening-than-in-the-morning/589096>\
**Category:** In My Humble Opinion\
**Created:** [July 15, 2011, 3:28am UTC](https://boards.straightdope.com/t/why-would-i-find-it-easier-to-run-in-the-evening-than-in-the-morning/589096 "2011-07-15T03:28:26Z")\
**Posts on this page:** 3\
**Page:** 2

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**Author:** ![jsquire](https://avatars.discourse-cdn.com/v4/letter/j/ce73a5/32.png) [@jsquire](https://boards.straightdope.com/u/jsquire)\
**Post date:** [July 16, 2011, 12:11am UTC](https://boards.straightdope.com/t/why-would-i-find-it-easier-to-run-in-the-evening-than-in-the-morning/589096/21 "2011-07-16T00:11:52Z")

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It’s not cortisol and probably not blood sugar and it sure as he’ll isn’t air density. It’s that after eight hours of not moving, muscles and connective tissue tend to stiffen up.

BTW, most world-class runners in Kenya tend to do their main run of the day at 6 am, while it’s still fairly cool. But they also tend to start off their runs at a ridiculously easy pace for a while before cranking it up.

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**Author:** ![CanvasShoes](https://avatars.discourse-cdn.com/v4/letter/c/74df32/32.png) [@CanvasShoes](https://boards.straightdope.com/u/CanvasShoes)\
**Post date:** [July 16, 2011, 8:01am UTC](https://boards.straightdope.com/t/why-would-i-find-it-easier-to-run-in-the-evening-than-in-the-morning/589096/22 "2011-07-16T08:01:42Z")

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Back when I was a gym rat, morning workouts were hell. I never felt as if I were even 1/4 as efficient and “with it” as I was for afternoon workouts. Maybe you’re just an owl? 😃

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**Author:** ![not\_what\_you\_d\_expect](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/not_what_you_d_expect/32/3246_2.png) [@not\_what\_you\_d\_expect](https://boards.straightdope.com/u/not_what_you_d_expect)\
**Post date:** [July 16, 2011, 12:08pm UTC](https://boards.straightdope.com/t/why-would-i-find-it-easier-to-run-in-the-evening-than-in-the-morning/589096/23 "2011-07-16T12:08:16Z")

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> [@Baracus](#):
>
> I don’t have any particular insight into this and any research that I could point to would be the same you could find with a quick google. The idea that more heart attacks occur in the morning seems well established.
> 
> Whether exercising in the morning necessarily puts you at a greater risk, I don’t know. Absent having a heart attack, I don’t think you would be doing any harm. My point was really that there are physiological differences between the morning and the evening and thus it is not surprising that one might perform better during one time or the other.
> 
> **bouv’s** point about eating/food may be more relevent.

Okay, thanks. I’ll try google. I don’t jump out of bed and go walking. I’m an early riser so I’m up for a couple of hours before I walk, but still prefer mornings. Aside from beating the heat, I enjoy knowing that my exercise is done for the day.

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