The following IS NOT advice on how to rehab, it's just how someone who's gotten addicted to strenuous activity deals with instructions to rehab slowly.

So expert2 (my dad's cardiologist) said I can start doing walks - work my way up to 2k (1.25 miles) in 20 minutes. Then the following week work my way up to 2.5k in 25 minutes etc.

To those who have never walked, let me translate - leisurely stroll pace.

Wife decided to keep me company my first walk. 2k in 20 minutes.

“Wooosh” roared the octogenarians speeding past while texting their grandchildren, speeding away in their 1974 Adidas sneakers.

This is what I've been reduced to.

The next day I do an 18-minute 2k. Still getting lapped by the local chapter of The Veterans of WWI club.

Day after that I say fuck it, clearly my doctor is copying-pasting from the old-man post-MI manual.

I do 4k in 33 minutes. 2 hours later I FEEL GREAT. For 6 months every time I worked out I only felt tired afterwards. Turns out it was because 2 of my 3 main arteries were completely blocked. Now, with circulation, I can get that rush post-workout again.

Over the next week I get down to 32 minutes, then 30:40.

Then, I figure I was pretty much running the downhill, so why not try a run?

So I did.

3.14k in 19:06, rolling terrain. At this point I was getting a bit tired (don't think my heart was in the way, though). Also, if I'm gonna stop, what better distance than Pi? And I wasn't going to push myself at all.

Not with a second procedure coming up in 3 days' time.

But that's a story for another day