Genetics, age, body composition and what all influence an individual's level of flexibility.

The answer is: Level of physical activity

In general, people who are physically active tend to have higher level of flexibility compared to people who lead a sedentary life style. This happen because as you become more physically active, your body is got used to and develop the ability to do wider range of motion.

depends if you are a hoarder or not

the answer is true because it was true