We've all got that mate who brags about doing 10,000 steps every single day.
But one YouTube star decided to go one better (or nine better) by tackling a massive 100,000 steps in less than 24 hours.
Jack Massey Welsh, a content creator with over 4 million followers on the platform, decided to take leg day seriously by setting off on a walk that Frodo Baggins and Sam Gamgee would've been proud of.
Walking obviously has its health benefits, with doctors having suggested that doing as little as 5k steps three times as week can extend a bloke's life expectancy.
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But doing 100k in one day is perhaps likely to bring about more problems than solutions, particularly when it comes to our poor trotters.
Welsh had already managed to do 250,000 footsteps in the space of a week, leading to some 'surprising' differences in his physique, but clearly wasn't satisfied with 'just' that.
Following the mammoth 100k-in-a-day challenge, Welsh shared the major health impact that it had on his body both during and after the hefty hike.
When he reached 25,000 steps, he complained: "My back's starting to ache a bit, my aches in my ankles have just gotten slightly worse, but it's all still kind of okay.
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"I think we're going to be fine, but I am feeling it a bit now. The fatigue is definitely setting in."
The pain was only just beginning for Jack however and after 75,000 steps, it seemed as if finishing the challenge wouldn't be easy.
He added: "My feet had obviously been aching since about 20,000 steps onwards, but it was my final 15,000 steps that were the hardest. My feet were not really sore and every step I was doing hurt.
"I think my ankles had swollen, so my shoes were less comfortable."
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However, he was finally able to complete the challenge after a solid 15 hours, 28 minutes, and 22 seconds of walking almost non-stop, which isn't exactly how most of us would spend a day off.
He concluded: "I was so exhausted, I couldn't even get up a small hill to get back to the car. When we got home, taking my shoes off was certainly a challenge.
"I still had multiple blisters and my feet had clearly been through a rough time."
As you might expect from those who have completed a marathon, or run the length of Africa in the Hardest Geezer's case, it's always going to be your feet that are probably suffering the most.
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So, if you're tempted to tackle a similar challenge, maybe make sure to take another pair of shoes, or at least some anti-blister socks.
James Moorhouse