India, May 28 -- Ice bath or cold water immersion is gaining popularity as celebs like actor Ahan Shetty, Shilpa Shetty Kundra and Kartik Aaryan share photos and vouch for its benefits. It involves submerging yourself in icy cold water and is said to improve blood circulation, trigger endorphins, and aid in relieving swelling and tissue breakdown post workout. But it isn't without risks....