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In the future, if this is without a doubt proven, what type of impact can it have on the Christian teaching of sexual morality? I myself have never once experienced any same sex attraction to other men. I don't know why, but it has never been a temptation for me. However, for gay people, it seems preposterous for them to even consider the possibility of celibacy or heterosexuality due to the intenseness of the temptation towards a homosexual lifestyle. Same sex attraction just comes natural for them. If this is truly a brain defect, merely a genetic predisposition, what kind of impact can that have on God's judgment of homosexuality? They must still have a choice, of course, but it seems that God would be more sympathetic toward someone who has no control over their attractions. They can't be judged for their attraction alone, but solely for their choice to abandon sexual purity and to pursue sin. Any thoughts?What makes people gay? Biologists may never get a complete answer to that question, but researchers in Sweden have found one more sign that the answer lies in the structure of the brain. Scientists at the Karolinska Institute studied brain scans of 90 gay and straight men and women, and found that the size of the two symmetrical halves of the brains of gay men more closely resembled those of straight women than they did straight men. In heterosexual women, the two halves of the brain are more or less the same size. In heterosexual men, the right hemisphere is slightly larger. Scans of the brains of gay men in the study, however, showed that their hemispheres were relatively symmetrical, like those of straight women, while the brains of homosexual women were asymmetrical like those of straight men. The number of nerves connecting the two sides of the brains of gay men were also more like the number in heterosexual women than in straight men.