Test tube babies face increased health hazards

The intention of test tube technology was a break through invention in the field of infertility therapy.This technique was introduced in the early 1978s and more than 3 million births have taken place with the aid of this reproductive technique.
But ongoing research in the health of these children points towards the increased risk of developing diabetes mellitus type 2,obesity,hypertension.
Research done on the children born with the aid of assisted reproductive technology give clues that chromosomal modifications namely DNA methylation show variations in those children when compared to the children born naturally.
The underlining cause for the abnormality in methylation is not yet ascertained.Further researches are on pending.