Any work out should start with a 5 to 10 minute warm up and should
end with a 5 to ten minute cool down session. Whatever physical
exercise you are involved in, you must remember to warm up before
the exercise really starts. Do not just plunge into the water
and start thrashing about, to put it figuratively.
Your body needs to reach a certain level of readiness before
it can actually start responding to exercise. And this readiness
is achieved by the warming up process.
