Niacin opens blood vessels wider. Niacin is critical to energy production and proper circulation for long lasting erections. Niacin also has the ability to increase sensation all over the body, thus it plays an important role in heightening the total physical experience during sexual intercourse.hen you get the niacin flush, itâs an indication that the niacin is causing small blood vessels in your body to be expanded in size. This is a tremendous increase in blood flow. You experience a flushing of the skin, simply because there is more blood close to the surface of the body.
So, in this case, the two babies came from one egg. These kinds of twins are called identical twins You can remember it this way: fraternal twins each have their own DNA, while identical twins share theirs.
Identical twins are genetically identical, so are always the same sex. On the other hand, you could have non-identical twins of the same sex. If a pregnancy scan clearly shows a boy and a girl then you can be sure that the twins are non-identical.