Conversely, you should also start adding layers before you get too cold.
When hiking to Mount Everest Base Camp, it’s all about layering. For one, you’ll start in warm to mild temperatures in Lukla. Like any mountainous region, it gets cooler as you climb higher. Second, you never want to get sweaty. It’s really important to remove layers before you start sweating. Being damp in chilly temperatures can quickly lead to hypothermia. Conversely, you should also start adding layers before you get too cold. Your clothing sort of reflects your body heat. And if it doesn’t have much to work with, it will take longer to warm up.