Nature or Nurture?-2

Furthermore, there are some research teams that found out that gene will not be changed, however, methylation of DNA will be influenced by diet habits and living environment which might cause different diseases such as cancers and melancholia. From this research consequence, one of a pair of identical twins has psychological disease, which tells us personality still can be have dramatic change as a human gets older. Clearly, nurture factor is more important than natural gene toward personality development.

In conclusion, I would like to restate that I believe that the environment has greater effects on people  more than decided it by gene. Not only identical twins may have distinct characteristics, for also their psychological status may be changed due to later lifestyle.

Key-

Changed for better understanding but was not "wrong" before

Changed and was wrong before

Shouldn't be there

Added for better understanding

Added because it was needed