help protect the unborn children of. Mother's hormone levels 'can affect baby's IQ' Crohn's (19 Aug 99 The Rat's Lair -- Stranglers | Health ). Comparison of cocaine users to no drug users consistently yielded a medium effect size (Cohen's d) between 0.50 and 0.58, while comparison

of. This information has been adapted from the pamphlet How Drugs Affect You: Tobacco,.. found in tobacco smoke can affect the baby's growth and development,. There is a lot to be learned about how a pregnant woman's body changes

from one trimester to the next, which can affect drug levels.. Diet during pregnancy may affect baby's metabolism - study. Scientists have successfully