Do you easily feel cold? Then you need to get uncomfortable to feel comfortable. A recent research shows 11 minute cold water submersion (2-3 sessions per week) is all it takes to see health benefits. It increases metabolism, improves cold adaptation, lowers (adapted) immune response, reduces insulin production, accelerates glucose metabolism, among other benefits .People, who regularly do deliberate cold exposure, increase their brown fat stores. Brown fat is a healthy, mitochondrial enriched fat storage compartment that assists in heating the body using white fat (the typical type stored around belly and elsewhere) for energy. Tools you can use;

1. Swimming in cold water
2. Sleeping in cold room
3. Shower with cold water
4. Physical activity in cold weather

You can read the whole research here