Everyone knows that the darkening of the skin with ultraviolet light causes the melanin - brown pigment. It is produced from the amino acid tyrosine, which also increases the amount of L-dopa - a precursor of dopamine, nor epinephrine and epinephrine in the brain and in the periphery. Besides, the melanin stimulates sympathetic-adrenal system.
All this makes it a good tan fat burning agent. However, the natural sunlight increase the basal metabolic rate, leading to metabolism of fat as well as muscle tissue. If they wish to work on body fat just by stimulation of sympathetic-adrenal system, without increasing the metabolic rate, you need to "switch off" from the process of infra-red radiation. This is easily accomplished using the tanning beach and sun deck, all the more so in the Russian climate solarium much more accessible "live" the sun.
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