Sometimes I sleep in a hammock and it helps a lot. I have a Grand Trunk and an ENO, both doubles, that fit me and my girlfriend comfortably. I prefer the Grand Trunk, but I use the ENO mounting hardware with it.
Normal adult cells use a small energy plant located inside them to produce most of their energy needs from oxygen, this is an aerobic process. In contrast, cancer cells rely mainly on the first part of the energy production process dependant on glucose (sugar), this is an anaerobic process.
The cells cannot use the ethanol and lactic acid byproducts and therefore have to get rid of them. In humans, this means lactic acid is excreted through the muscle fibers and processed by the liver. The lactic acid can build up in muscle fibers, however, causing side effects of anaerobic respiration.