Not at my age, I happy to walk 30mins.
Always got hurt running. Switched to cycling instead. Then, I started Slow Burn and finally proceeded to Body by Science. Now, I work out about 20 minutes Body by Science once per week, and 15 minutes HIIT. That's it. And I'm going to try dropping the HIIT, so it'll only be about 20 minutes of Body by Science per week.
Now, I've been radicalized. I don't believe exercise results in weight loss, and to the extent it does result in weight loss, it's because of change in insulin resistance and not calories that cause the weight loss. I've lost 55 pounds mainly changing what I eat (went to low carb), then changing when I eat it (started intermittent fasting). Now, I'm following a ketogenic diet. I also think long periods of exercise are not healthy for many people (including me) and cause or exacerbate atrial fibrillation and other errors in heart beat regulation.
For me, a mere 20 minutes of high intensity weight lifting seems to do wonders.