Cardiovascular disease and resultingblood flow restrictionis the #1 comorbidity for covid.
75% of virus deaths caused by this one heart condition? https://www.facebook.com/drlivingood/videos/2809650369300317
He's selling something but IMO the solution is very simple:Start walking folks! It's easy and fun, especially with a dog. Only 20 minutes of brisk walking daily will make a huge difference in most comorbidity issues. Companionship with your dog is also good for your mental health and overall outlook on life.