<span><span>Rest</span><span>Ice</span><span>Compression</span><span>Elevation</span></span>
Depends on what you mean by cold.
If you mean like cold, like tempurature, then wear the smallest amount of cloths, and use air conditioning.
A sign on the road, it could be multiple colors.
BMI- obesity
X-Ray- COPD
Blood Cell Count- iron deficiency
