The voltage delivering 1 watt depends on how many amps are present. We use watts to measure power (P), and amps (I) times volts (E) equals watts.
The liver and the production of urea Urea is a nitrogen-containing substance which is produced in the liver, in order to deal with excess amino-acids in the body, which is a natural consequence of the fact that we almost always eat more protein than our body needs to assimilate. The process is called deamination.
DHEA is secreted by the adrenal glands, and also produced in the gonads (testes and ovaries), and brain. It is sometimes called the mother of all hormones because it is the building block from which estrogen and testosterone are produced, and is vital to health.