Largest twin study explores whether the environment affects people differently depending on their genes

An international team of researchers led by King’s College London has identified genetic factors that may make some individuals more or less sensitive to the environments they experience. Published in Nature Human Behaviour, the study examined how individuals’ varying sensitivity to environmental factors can influence levels of ADHD symptoms, autistic traits, anxiety and depression symptoms,…

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These Two Stimulants Should Be Contraindicated During Pregnancy, Group Says

Consumer advocacy organization Public Citizen is sounding the alarm about potential risks for birth defects associated with modafinil (Provigil) and armodafinil (Nuvigil), two stimulants commonly prescribed during pregnancy. The group argued that animal toxicity studies and post-marketing observational studies have turned up sufficient evidence to justify additional precautions for pregnant patients.

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Blocking Opioid Receptors May Restore Healthy Dopamine Balance

Summary: New research identifies a promising strategy for correcting dopamine imbalances in the brain using a drug that blocks kappa opioid receptors (KOR). In mouse models with a rare mutation that causes dopamine to leak abnormally, KOR blockers reduced this leakage and restored normal behavior. This approach could offer safer treatment alternatives for conditions like…

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