The heatwave that hit much of the country the first week of July did not spare northeast Indiana. It was hot.
One of those hot days a friend asked me if I still went out to run in the warm mornings. Yes, I did (virtue signaled, please acknowledge – if virtue is its own reward, virtue seen is a close second). I am usually out at daybreak, and so avoided the worst of the high temperatures, but with a 75-degree morning the coolest part of the day, the 86-degree “real feel” put me well into the warm-running category. The 80% humidity didn’t help.
There’s a lot not to like about running in the heat, but there was something invigorating about it, too. Despite the sweat, it felt great. Was it a runner’s high from the heat causing more endorphins to be released? Were my muscles and joints more limber than on cold mornings? Or was it just the reward of my virtue? I asked Google why I was feeling so good, and I was told that one of the advantages of warm-weather running is, “increased maximum cardiac output (measured in liters/minute of blood flow) and increased blood plasma volume, both contributing to an increase in VO2max. (VO2max is the maximum rate of oxygen consumption, often referred to as the size of one’s ‘engine’.)”
Nothing makes you feel good like an increased VO2max.
This week’s morning temperatures, even “real feel,” have been back into the lower 60s. No virtue in such running and I think my VO2max may have decreased a bit. Still, there’s a lot to like about running in the cool(er) of the morn. Looks like we’ll be back to hot by the middle of next week, however. Get ready to rise, VO2max!
The hot weather runs have me thinking not only about my virtue, but about how heat helps the heart – and how that may be spiritually true, as well.
Right now, I have several friends in uncomfortable situations – health, employment, relationships. They are feeling the heat, but rather than getting out of the proverbial kitchen, they are clinging to Christ and the promises of his word. Their spiritual VO2max is on the rise. Paul wrote to the Corinthians about the strength he found in times of weakness, “(Christ) said to me, ‘My grace is sufficient for you, for my power is made perfect in weakness. ’Therefore I will boast all the more gladly of my weaknesses, so that the power of Christ may rest upon me. For the sake of Christ, then, I am content with weaknesses, insults, hardships, persecutions, and calamities. For when I am weak, then I am strong.” (2 Corinthians 12:9–10)
No virtue signaling for the faithful, just a humble dependence on grace.




