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thyroid
The immune system stimulating TSH stimulates the metabolism of almost all tissues in the body.
Thyroid-stimulating hormone
Enzymes such as amylase.
liver
phosphorus
Fatty acids are used as fuel for muscle contraction and general metabolism.
Shivering warms the body by increasing metabolism.
Roger C. Woledge has written: 'Energetic aspects of muscle contraction' -- subject(s): Energy metabolism, Muscle contraction
Yes! By increasing calorie expenditure and increasing you metabolism to burn fat and calories faster.
Caffeine
Metabolism and respiration.