5 minutes of exercise can change your body

I am brushing my teeth every night before I go to bed and after wards I take 5 minutes to do some push ups and abs. It works amazingly. I also read that you should do jumping jacks or anything which involves cardiovascular training. Doing that 5 minutes every night or morning (or any other time of the day) can change your health and the comfort of your body.

Is there anyone out there who has experienced the same or similar? Please share I would like to learn and read some more about it.