The best cardio is the one that you like to do. When it becomes a dreaded chore, you are less likely to do it. An easy do-anywhere cardio is walking. You don’t need any special equipment to go for a walk. Make it fun, and the time will fly by, and you might even find yourself looking forward to your next workout. Be creative. If you don’t have a gym membership, and the weather is inclement, put on some fast-paced music and dance around the house. Climbing stairs is an excellent workout too.
Personally, I like to run. But that wasn’t always the case. I used to have exercise-induced asthma and I thought running was absolute torture. When I made changes to my diet, the asthma went into remission, and I found I really enjoyed running. But again, I had to start with walking, and then mixed in a few running intervals. Going too fast, too soon, is more likely to lead to burn-out than a runner’s high.
Whatever it is that you choose, enjoy it. That’s the secret to sticking with it.