Learn how to Lose weight in 7 days. Full body exercise and full body workout . now you can get slin in 7 days with the lose weight in one week workout. Learn how to lose weight in 7 days with these simple yet effective exercises. burn fat and burn body fat. this in one week weight loss challenge. you can do these exercises 30 minutes. its a 30 min fat burn exercises to lose weight thats why its called 7 days fat burn.