Medical Dictionary. arrhythmia. play. noun arÂ·rhythÂ·mia \Ä-Ërith-mÄ-É\. Medical Definition of arrhythmia. : an alteration in rhythm of the heartbeat either in time or force.
Central metabolism provides mechanisms for the generation of energy from carbon-energy source catabolism and the production of biosynthetic precursors and intermediates for the anabolic pathways essential to maintain cell structure and function.
Some helpful advice when searching would be to look for products with many ingredients from the four categories listed above: 1  Lipotropics - Help digestion. 2  Thermogenics - Increase metabolism, often by stimulating the thyroid gland. 3  Hormonal Regulators - Prevent fat storage and promote lean mass.