You may want to talk to your doctor about potential exercise-induced cardiac remodeling. Not an expert on this at all. But it’s an injury mode that’s been recently characterized due to sudden deaths among young, seemingly-healthy sprinters.

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deeth_starr_v 3 hours ago | parent [-]

Very interesting. I can also get Afib after many years of high intensity exercise

	▲	all2 2 hours ago \| parent [-]
		This happens to me occasionally, but it's typically stimulant and blood sugar related. There are some indications that it might be related to ion availability in your body, so copper, zinc, and calcium specifically. You may also consider that HF RF found in phones, wifi, and Bluetooth can do not great things to the calcium channels in cell walls (it essentially locks the channels open in some cases). There are a lot of factors to this, but these are things I've picked up in my reading for my own issues.