Traditional lap pools are about 10 feet wide, though widths between 8 and 10 feet are common. (In competition pools, swim lanes are 2.5 meters wide, or about 8.2 feet.) You don't want to go too narrow with a lap pool.
The number of neurons in the brain varies dramatically from species to species. One estimate (published in 1988) puts the human brain at about 100 billion (10 11) neurons and 100 trillion (10 14) synapses.
Â· just now. 1  RE: 2  I guess we only have neurons in our brain, because we use the smart brain to to tell our other parts of our body what to do. 3  my answer is also same 1,000 billion neurons in human body. 4  tell me how many here are people!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!