Is it possible to become more flexible now that I am 15 years old? I know that many people are flexible because they had trained at a very young age. To be honest, I am the least flexible person I know (Seriously- I'm really stiff.) and I want to know if there is a regiment I could follow in order to become flexible at this age. Thanks!

Just stretch everyday and you will be become more flexible each time you do it.

yes you can always become more flexible! just stretch!! but some people are born with more flexibility than others! you can only increase your flexibility by 25% or so!

Yes, try taking a yoga class. Many of the stretches you do in yoga are the movements that chiropractors would do on athletes to help stretch them out. I found when I was doing yoga classes that I had fewer injuries playing sports.

Yes, that is what stretching is for. You can become more flexible.