India, May 29 -- Actor Rakul Preet Singh swears by a simple morning skincare hack: dunking her face in ice-cold water. This "thanda jhatka," as she calls it, in a recent Insta post, helps reduce puffiness, wakes her up, and preps her skin for makeup. Dermatologist Dr Suby Kakkar explains the science behind this 'ice water facial' beauty hack. Cold water causes blood vessels to constrict, which reduces swelling and tightens pores. When the skin warms up, blood flow increases, giving the face a natural, radiant glow. The ritual's strength lies in its simplicity, needing no expensive products or complicated routines. Rakul's easy ice-water splash is a powerful way to invigorate skin and reduce morning puffiness, giving way to a fresh, healthy look.htc...