Hello, you can jog if you have a bad heart. Whether young or old, jogging for 20-40 minutes on weekdays is very beneficial to your health. You don't have to worry about heart problems. But strenuous exercise is not recommended. It does great harm to people with bad hearts. If you keep exercising for a long time, it will be good for your heart. Enhance myocardial and blood circulation. Even restore the heart to health. Unlikely!

I hope I can help you, thank you!