[pieceofthepuzzle]

For DNA modifications to be passed on to offspring there would have to be changes in the DNA of germline cells (i.e. ova, sperm). Whether or not environmental exposures (.e.g. stress, nicotine, alcohol, etc.) can alter the ‘epigenetics’ (e.g. DNA methylation patterns, histone acetylation etc.) of germline DNA remains unclear. What appears more clear is that the environment of the womb during embryonic development of a child is a crucial time during which what you eat, what drugs you take, what you drink, and whether or not you smoke can have a long-term effect on the child, even defining susceptibility to disease in adulthood.

[B4Ranch]

I believe that the environment of the womb during embryonic development of a child is a crucial time and a lot depends on whether or not you are happy or stressed and angry.

[Pontiac]

What appears more clear is that the environment of the womb during embryonic development of a child is a crucial time during which what you eat, what drugs you take, what you drink, and whether or not you smoke can have a long-term effect on the child, even defining susceptibility to disease in adulthood.

I have read of a theory that elevated maternal hormone levels during pregnancy may be linked to homosexuality.