They found that redheads have a different response to pain than people with other hair colours. So, although it is uncommon, parents with blue eyes can have children with brown eyes. Yet baby laughter, a new study shows, differs from adult laughter in a key way: It seems the future looks bright for blue-eyed redheads, because enough people carry the genes to keep these traits appearing in the human population. Biggest black cock ever in cuc
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Professor Elgar adds that with respect to cancer and other life-threatening conditions, ultimately and sometimes unfortunately, the survival of particular attributes of our species only comes down to whether individuals living long enough to pass on their genes to offspring. One study found that people with red hair are more sensitive to thermal pain while other researchers concluded that redheads are less sensitive to electrically induced pain. Euro French milf immigrants th Thick white blonde slutwife ge BBC superior hypno trainer com However, later studies showed this model was too simplistic and there are multiple genes involved in eye colour.