German researchers have discovered that drinking about 2 cups of ice cold water temporarily boosts metabolic rate by roughly 30 %. (thescienceofgettingripped.com)
While it increases hormones, fasting may also boost the metabolic rate of the body as it reduces insulin resistance, and in turn, blood sugar to help reduce the risk of diabetes. (purechange.co)
Weight training builds up muscle bulk, which boosts the metabolic rate by about 15 per cent. (womenshealthandfitness.com.au)