Good exercises for cardio, but also weight loss?

I have been trying to loose weight, but when I do any kind of exercises I get just plain tuckered out (I have a heart condition, not just that out of shape). So I am wondering if there are any weight loss exercises that will also do good for cardio?

I would like to loose weight, I am currently only about two pounds overweight but would like to loose about 10-15 pounds. If you know a routine that would do good let me know. Currently I am doing Strength training Monday, Wendsday, and Friday. And Cardio on the other days. I am wondering if I should cut the strength and do cardio all the time. I am a female, 5’5″

Thank you all for you time

Good weight loss exercises for a 15 yr old?

I’m 15 and I need to lose weight. I’m 14 stone and 5ft 11, which makes my BMI 27, which is overweight.

I’ve been doing quite a bit of research and I have a good idea of what to do diet wise but I am a bit clueless with exercise, so I need help/tips. I am looking for:
Exercises I can do in my bedroom at night (press ups etc. and I also have 4.5kg/10lbs, 2.3kg/5lbs and 1.1kg/2.5lbs dumbbells)
The best thing I can do for weight loss at the gym (I go once a week)
and also any other exercises/simple things I can do.

How do I help my horse loose weight?

My horse is a middle weight 16hh gelding. He is on limited grazing at the moment and all he has is some basic chaff in the morning (literally a handful). He is not being exercised at the moment due to injury but it should only be a couple of weeks off. He just seems to put weight on soo easily. What are the best techniques to making him loose wieght?
Also, what are some good techniques to help him loose weight when i can ride again?