Answer:
I have been a gymnast for about 7 years, and i say that 5 minutes per day is good to improve your flexibility, if you are a beginner.
If you are a little bit flexible i would say 20 minutes so you get more felxible way faster.
Explanation:
The cartilage matrix between two bones of a joint allow for the firm, yet flexible and smooth surface by which the bones of a joint are able to move.
Short Answer: <em>Cartilage Matrix</em>
When parents or the one responsible for a child do not provide the needs of a child such a food, shelter, attention and etc.. It is referred to as maltreatment or letter B. This is the best answer to the question you have given.
Tell her itś healthier ways to gain muscle. Then give her some ideas