Long-term side effects of marijuana can include:heart problems from increased heart rate lung irritation, cough, trouble breathing mental health problems such as anxiety, depression, psychosis or risk of suicide problems in pregnancy and with a newborn baby dependence and addiction withdrawal symptoms...
The ill effects can continue after birth with continued marijuana use, the Surgeon General's advisory says. "THC has been found in breast milk for up to six days after the last recorded use," the advisory states. "It may affect the newborn's brain development and result in hyperactivity, ...