- Set your thermostat at 60 degrees;
- Put an ice pack on your neck and shoulders for 30 minutes a day; for example, while watching TV;
- Drink 50 ml. of ice water each morning;
- Take cold showers;
- Immerse yourself up to your waist in an ice bath for 10 minutes, three times per week;
- Exercise (duh!).
Interestingly, brown fat cells derive from the same root as muscle cells. For more fun facts, read the full article.