In his practice, Dr. Guo is asked daily about collagen loss in one way or another. It’s not unusual for a patient to come to the clinic and point to the fine lines on their face, rings on their neck, ...
Note: Calculation of the sun WBGT has been suppressed for this hour because the approximation used is not valid at these times. The shade WBGT is calculated for an environment shaded from direct (and ...