I doubt anyone jogging - or running - in public is putting in that level of exertion. They're simply being more miserable than those that do respond.
I'm a runner as well as a cyclist.
And relentlessly cheery when out and about.
But running is definitely harder, unless we're talking 1 in 4 Hill climbs.
I only run from home atm so there's a fair chance that anyone I see will know me at least by sight, so it makes sense to be friendly, just in case.
Resisting the temptation to stop and chat, esp on hills is, actually quite hard.
Especially as my running mate is 20 *years my junior and has even longer legs than me.
The being out of puff thing, is definitely a thing.
Outside of that, I think it's the same as with anyone, cyclists, runners, walkers whoever.. Some folks are friendly, some are in 'the zone' and others just cba with greeting passing strangers.
Surely sheer volume of people makes a difference too?? If I'm hiking and haven't seen anyone all day, then I'll stop for a chat if I see someone.
In a busier place where there's someone every half mile, that gets a bit repetitive, so I don't bother ..
Edit.. *Oh shoot.. It's more like 30 years
