Question

which is a benefit related to abstaining from alcohol?
decreased blood pressure
increased medication interactions
increased neurological problems
decreased fertility

Explanation:

Alcohol consumption can increase blood pressure. Abstaining from alcohol can help in reducing blood pressure. Increased medication interactions, increased neurological problems and decreased fertility are not benefits but rather negative effects that can be associated with alcohol consumption (increased medication interactions - alcohol can interact badly with many medications; increased neurological problems - alcohol can damage the nervous system; decreased fertility - alcohol can affect reproductive health in both men and women negatively).

Answer:

decreased blood pressure