This study goes in detail on legal doping for endurance. All you need is a bucket of water at the start line.
By triggering a diving reflex, athletes who perform breath-holds can increase red blood cells—and, possibly, endurance
www.outsideonline.com
Who's gonna be first to try this?
I might as well by the guinea pig. What could go wrong? This morbid humor brought to you by:
Diagnosis update: A number of you have seen this via text or social media, but I have
glioblastoma multiforme (GBM), which is a Grade 4 (or 4), aggressive brain cancer. PSA: Don't google this.

I'll do six weeks of radiation therapy starting in early/mid January, followed by/overlapped a month later with several months of chemo (via pill, I believe). The hope and prayer is that the treatments and my strength are better than the cancer. But those odds are not high with a GBM. I've already heard of a couple friends of friends that are now at three years with glioblastoma, and I think that's encouraging? For now, I anticipate that 2025 will pretty much suck. And while this isn't the race I wanted, it's the one I've got. So every day, I fight. Today is Sol 10 (day 10), and one of my goals is to celebrate Sol 1000.
Please pray for my children, in particular. My daughter (36) has a strong emotional attachment to her 'daddio.' She has always loved to come to my races, and she has always appreciated the FBG stories. My son (38) has the obligation to "man up" and be strong for the rest of the family, including his three sons (8 and 6, who have run short 'fun runs' with me; and 16 months). My wife has a thick skin, so she's holding up well. She and I both have a large and strong network surrounding us, though I've got all of you ...which always has and, now, always will mean a lot.

For now, I'm at peace.