well anything with wires is gonna break if you move the wires around too much, they will just fatigue and break inside... just like when you have a papercilp and bend it back and forth till it just breaks apart... same thing happens to wires.
but, frequent heating and cooling will rearrange the molecular crystalline structure of the metal or somethingl ike that, and causes the metal strands to become more brittle and more susceptible to failure when exposed to physical stress.
soo... in other words, be GENTLE with it
