Does air conditioning hurt your back?

After blowing air conditioner commonly, can cause the soft tissue of lumbar catch cold, convulsion, it is to be able to cause lumbar ache. Especially in summer, if long-term blowing air conditioning, it is easy to cause waist muscles, fascia, ligaments show spasmodic contraction, so it will cause muscle, fascia, ligament relaxation weakened, and after catching cold, it is easy to cause waist soft tissue blood vessels contraction, spasm, so cause waist soft tissue blood circulation weakened, it will cause soft tissue edema, this situation will also show waist pain. Therefore, blowing air conditioning after it will cause waist pain. One is muscle, ligament spasmodic pain, and then is the edema caused by ischemia pain.