>>76579699 (OP)
I am a weightlifter at heart and have been lifting for 15 years. I avoided cardio that whole time for a few reasons.
1. Its fucking hard if you dont do it all the time and its miserable.
2. It takes even more time out of my day where lifting already takes an hour.
3. I thought it would interfere with my hypertrophy gains somehow.
I got a hernia early this year and that really put a hold on the types of lifting I could do but I didnt want to stop exercising so I started doing cardio for 30 minutes a day and just made it part of my routine. I dont know how I ever got through life without it. I can lift again so I lift heavier than ever and recover in between sets in about 1/3 the time. This has reduced my weight lifting sessions from 60+ mins down to around 40 minutes. It just takes way less time in between sets to recover which I attribute directly to cardiovascular improvements from doing cardio every day. This means my workouts have gone from 90 mins when I first started doing cardio down to about 70 mins which is only 10 minutes more than when I was just lifting but im getting the same amount of sets in so this is great. Its worth the 10 extra minutes out of my day for all the other benefits which include the following.
1. Sex with my wife is insane now. I have higher stamina, can last longer and go hard without even becoming remotely winded or tired or sweaty.
2. I can run around and chase my kids through the park and up and around the obstacles etc.
3. Resting heart rate dropped from 95+ bpm down to 55bpm. My blood pressure which was high is also now normal. This is the most insane part of this whole cardio thing. When I was lifting I was taking blood pressure medication because I was at like 145/90. I have been to the doctor a few times and now its 118/78 consistently without meds. The reduced heart rate is eerie because im used to the fast beat of around 100bpm. My heart is so much stronger now.
Cardio is king.