Can I do too much cardio?
Hello, I'm a 19 year old male. I recently went from 340 pounds to 289 pounds as of this morning. The drop has been since March, though primarily it's been since May. I started exercising using a fitness bike, and I could hardly do a mile per day.
Now on medium tension I do 14 miles a day. I would like to eventually bump this up to 20. I also would like to start running. Even though I've lost a lot of weight and I've been dieting, I'm still impatient and want faster results.
So my question is, is more cardio unhealthy? Is it a good idea? etc. Altogether I say I do about.. 70 minutes of cardio a day, currently. Sometimes closer to 60 if I work faster.
A second question is, I lift weights (10 lb and 25 lb dumbells) and when I lift the 10s outward from my body (to my sides, both arms at the same time, and i stop a little above my shoulder, I don't know what it's called), it seems like it's not getting easier despite doing it for a good month now. I do 3 sets of 12. Any tips?