Smoking weed can cause slower fetal growth and low birth weight. Mothers who take a lot of smoke show an increased risk in tumours and startling, suggesting an immature nervous system growth. Some studies suggest no cognitive impairment, where other studies suggest that learning and memory may be impaired.
Parental use of cannabis well baby in the womb shows an increase in impulsivity (the number one cause of learning issues in the classroom), hyperactivity (ADHD), issues with paying attention (I would pay attention, but I could not afford it), increased delinquencies, and aggressive behaviour. In addition, a study out of Sweden suggests that fetal exposure to the supreme green may impair the brain’s systems that regulate emotional behaviour.
Scientists found that maternal use of weed predisposed offspring to dependence on opiates. Like the adult brain, the fetal brain had cannabinoid receptors–called CB-1 receptors–and other altered structures by exposure to marijuana.
Using cocaine with a bun in the oven can cause stillbirth, low birth rate, as well as congenital disabilities. Infants are often excitable and irritable or lethargic. The more heavily exposed to cocaine they are in utero, the more problems they have with bitterness, concentration, and sleep. Children who were exposed to cocaine had much lower expressive language scores and somewhat lower receptive language scores.
Several antibodies may be harmful to the fetus. For example, tetracycline, which is frequently prescribed for bacterial infections, can lead to yellowed teeth and bone abnormalities. Other antibiotics–aminoglycosides such as streptomycin–are strongly implicated in hearing loss. Parental use of antibiotics also appears to increase the risk of childhood asthma.
High doses of vitamin A and D have been linked to central nervous system damage, smaller head size, and heart defects. In addition, folic acid supplements have reduced the number of neural tube deficits in infants.
Maternal addiction to heroin or methadone is linked to low birth weight, prematurity, and toxemia. These narcotics readily cross the placental membrane, and the fetuses of women who use them regularly can become addicted. Babies can indeed be born addicted to narcotics and other substances used regularly by their mothers.
Aspirin and ibuprofen are linked to internal bleeding and respiratory problems such as childhood asthma.
Caffeine can stimulate the fetus and cause a miscarriage and low birth weight.
Heavy metals such as lead, mercury and zinc can lead to ADHD, stillbirths, intellectual deficiencies, and issues forming memories.