Eli5: what is a heart bypass?

Question

I’m not super familiar with medical stuff. But we found out today my dad needs a bypass and I’m anxious about it, they tried to explain it and I’ve tried looking it up but I genuinely don’t understand what it entails or if he’ll be okay

Thanks

Edit: I don’t have the energy to reply to everyone but ty all for your explanations!! I’m still anxious but feeling a lot less worried knowing what it actually is

In: 9

Answer 1

The main two things your Dad can do to look after himself after a bypass is take his meds and start attending to his lifestyle.
He needs a referral to a registered Dietician for the best advice on diet based on his food preferences. He also needs to ask about cardiac rehab exercise groups.