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 urea and water that make up urine are removed from the blood in  the kidney. This is then passed on to the bladder which will be  excreted as urine.
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.