How cancer starts and causes.
HIV, like all viruses, do not reproduce until they are inside a host cell. HIV are retroviruses, meaning that their genetic material consists of RNA instead of DNA. For HIV-1 to enter a cell, its envelope spike, called gp120, must bind with a CD4 receptor in the host cell plasma membrane. It appears that a plasma membrane protein, called a fusion cofactor, is also necessary to the binding process.
To defend against sickness and aging.
Breaking down the body in order to restore appreciation to it and practice good health choices.
The immune system of the bat has been revealed to be unlike that of any other mammal. It is unusual in its toughness, toughness thought to derive from the demands of flying. In consequence, bats rarely die from disease or age, but rather from external causes. If the human immune response could be manipulated to resemble that of the bat’s, it is possible that humans may derive the same benefits from that response as bats do from theirs.