Focus on your breath
In one study, participants used a meditative “vase breathing” technique to raise their core body temperature to 101 degrees. Begin by inhaling deeply. On your exhale, contract both your abdominal and pelvic muscles so your lower belly takes on the shape of a gently rounded vase or pot. Some practitioners also recommend visualizing a flame on the spinal cord. For something simpler, try yoga’s staple, ujjayi (“victorious”) breath. Constrict the back of your throat as you slowly breathe in and out through your nose. The constriction creates more work for muscles involved in respiration, which helps build internal heat. Here are some more ways your body reacts to cold weather.
Bundle up the smart way
Layers trap heat and help prevent sweating (which makes you feel colder). Start with a tight-fitting bottom layer made of a fast-drying fabric like polyester, merino wool, silk, or another synthetic blend (stay away from slow-drying cotton). Add a long-sleeved shirt, cardigan sweater, or fleece vest. Wear your winter coat on top. If you want an extra layer between you and your jacket, invest in a quality wool sweater, suggests Sierra Trading Post. Wool is one of the best natural insulators. Learn more about how to properly layer clothes to stay warm.