I'm gonna use alterate names for things so it doesn't get automatically removed...
I'm assumimng this is talking about pull out or natural family planning (NFP) where you only hanky panky durring times of the month where the woman is least likely to be fertile.
NFP: Safe because it doesn't interfere with hormones or any of the body's functions. It relies on working around them. However, it's not reliable because the body isn't a clock. The egg can be released at different times from month to month and swimmers can live for up to 6 days.
Pull out: Safe because, again, it doesn't interfere with hormones. Unreliable because pre-___ can contain swimmers and it only takes one to fertalize. Men don't always time it right.
The one that provides the best cool down strategy for reaching that goal using static stretching is : gradually increasing the challenge level of stretches
by doing this,her joint will become more and more flexible and it will reach a point where the range of motion in her shoulders would be increased
hope this helps