Scientists used to think that left-handedness was genetic, but in 20% of identical twins, one is left-handed and the other right-handed. Some think it is determined by what side of your brain you use more. Lefties are generally right-brained. Most children tend to develop a preference for one hand over the other at about the same time that their central nervous system is maturing. The two processes may be linked. Some think that right-handedness is the default, but a stressful birth might switch the preference. Twins, children born to smokers and children born to women over thirtyare more likely to be left-handed, which may suggest stressful births affect the preference.
Egyptian artwork displays Egyptians as right-handed and enemies as left-handed. Greeks believed women (the "lesser sex") sat on the left side of the womb during pregnancy. The Latin word for "left" was "sinister." "Right" was "dexter," which means skillful or adroit. Ambidextrous means, literally, "right-handed with both hands."
Lefties are more likely to be at the extreme ends of intelligence. A higher proportion of mentally retarded people are left-handed, as are people with IQs over 140.
Homosexuality is something that will never be perfectly defined, because people will believe what they want, despite all the evidence in the world stacked against them. The fact is their is no evidence that exists that suggests that homosexuality has any connection to genetics. Nothing about behavior or preference can be traced to genetics or DNA. Some studies suggest, and hint at, and say, "Maybe," or "It's possible that," or "It is likely that," but no one can say with any degree of certainty that genes play any role in behavior.
People can change. I know many people (personally) that have gone one way or the other. People can convince themselves of whatever they want. If we could not do anything about our sexual urges then pederasty and incest would be legal. Society places boundaries where it will, and our society is only loosening it's standards. The emergence of "political correctness" has forced society to respect and admire those that are different. That's all and good, but the people who's behavior detracts from society are also getting their fifteen minutes, and it's taking its toll.
Homosexuality is abnormal. The function of our sexual drive and our sexual organs is procreation. Homosexuality circumvents that and betrays the purpose of sex. Granted that sex is not only for the purpose of procreation, our physical attraction to members of the opposite sex is.
Almost every man that lives would be lying if he said he has never fantasized for at least a second about a homosexual encounter. Those urges sneak up on people sometimes. Some people entertain those urges. Some people feel disgusted later and some don't. Does having those urges make you gay? Does acting upon those urges make you gay? What if you go for fifteen years with a desire to have a homosexual relationship but you never get around to it? Are you gay?
