Disclaimer: Consult your doctor regarding the vaccine, none of the following information is meant to be in lieu of getting a vaccine. Don’t be like me, or do what I do. Live your own life!
For Anyone interested at how to improve their heart health, omega-3 fish oil is a supplement proven to help with that. Lungs unfortunately I do not know as much about, supplement-wise :/
In regards to activity to improve heart and lung health, Pavel the man speaking here has a degree in sports science and has trained US navy seals, marines, and army special forces at improving their cardiovascular health and endurance
I know Joe Rogan is hated here. Ignore him if you dislike him, he barely speaks at all anyway:
https://m.youtube.com/watch?v=