Question

in which way does nicotine cause addiction?
by stimulating the brains pleasure center
by increasing blood - sugar levels
by decreasing dopamine levels
by reducing depression and anxiety

Explanation:

Nicotine stimulates the brain's pleasure - center by causing the release of dopamine, which leads to feelings of pleasure and contributes to addiction. Increasing blood - sugar levels is not related to nicotine addiction. Nicotine actually increases dopamine levels, not decreases them. While it may have some short - term effects on mood, the primary mechanism of addiction is through the pleasure - center stimulation.

Answer:

A. by stimulating the brain's pleasure center