Hi A.:
Most of us can identify with you - by the time we get around to exercising we are too tired to do it - and getting up any earlier than we do seems impossible! But I have found some nutritional products that give me more energy (I actually wake before my alarm now) and they build lean muscle mass and help loose any unwanted pounds and inches. (They also have a kid's line too!) I now sleep better, have less stress, have better mental focus and have lost 25 pounds & 14 inches (8 pounds my first week!)
As for exercising, I haven't tried yoga but get a great workout with Leslie Sansone's walking cds - you can do them at home and your son's may like dancing around with you You can start with a 1-2 mile cd in 30 minutes and work up to 4 miles that takes 50 minutes. Great cardio workout that is FUN!
Good luck to you and I hope you get the answers you are seeking! Will be glad to share more info with you - if you want to see why so many of us have trouble losing weight look at www.DrSpeaksOut.com.
Blessings,
E., RN