How to lose weight at home for free

Hi Adrian,
I used to be in the Army and happy with my body; we did an hour a day in the mornings, and I mountain biked about 10 miles 2-3 times a week as a hobby. But a car accident damaged my left knee badly enough that running and biking is no longer an option (not to mention banning things like jumping, lunges, stairs, and on bad days even quick walks) and now I'm having a terrible time finding cardio exercises I can actually DO, so I've gotten sedentary and gained a bunch of weight... any suggestions on cardio options for people with really bad knees?
Thanks!

Hi, Adrian
I turn 29 this summer. I currently weigh 278lbs and stand 5ft 10in. I need some serious help. I've gained close to eighty since my mom's passing a few yrs ago, from complications of her Type II Diabetes. I don't want to turn 29 and still be this overweight woman, facing some potential health issues. I'm ready for a better body, a better life and certainly a better me; while I'm still able to make a difference in myself. Please help.

I'm 11 years old and i way 116 pounds i try to loose weight on my own but i end up not sticking to it because i cut everything out on the first day and i end up starving do you have any tips to help me???????

i am 15 years old i weigh 170 punds and i want to get down to 125 pounds i need help fast

Hi Adrian,

Thanks a lot for this site. I have a problem that seems to be common. I would like to lose weight but I just think about it more than I work at losing it. I have an active lifestyle but l lack motivation. I am 5'2", I weigh 152 lbs and I would like to be 130lbs in 2 months or less. How best can l be motivated?

hey im 13. Im 5 feet and 9 inches and i weigh almost 210 lbs. I want to lose weight in 5 months, help me?