Because the false belief of harmlessness of marijuana, this
is the most widely used illicit drug during pregnancy.
So far there is no evidence that marijuana use increases the
risk of malformations, miscarriages or premature births. However, in patients
who smoke more than six marijuana cigarettes a week, have the children from 2
years of age, the lower verbal ability and less memory capacity than other
children. These children are also at increased risk of hyperactivity and
depression. There are also studies that show an increased risk of leukaemia in
children whose mothers smoked regular cigarettes and marijuana during pregnancy.
Recent results indicate that the practice of smoking
marijuana and inject cocaine at the same time can cause a marked increase in
the frequency and voltage a cardiac artery. Each drug alone produced
cardiovascular effects, when combined, these effects were intensified and
lasted longer. A cardiac frequency of the study subjects. Marijuana augments 29
beats per minute and cocaine 32 beats per minute. When given together, a
cardiac frequency increase at 49 beats per minute, and this increase persisted,
for longer. The drugs were administered to subjects while they were at rest.
Normally, a person may smoke marijuana and inject cocaine and then do something
that causes Infections which can greatly increase the risk of overloading the
cardiovascular system.
Research indicates that THC impairs the immune system of the
body, which can cause a wide variety of health problems. One study found that
marijuana inhibited the actions of diseases that prevent key immune cells.
Another study found that THC increased the risk of developing bacterial
infections and tumours.