Question

question 19 (5 points)
studies have linked nicotine use in teenagers and young adults to which of the following?

a) mood disorders
b) low blood pressure
c) obesity
d) a sluggish heart rate

Explanation:

🆕 New Concept Discovered: Neurobiology of Nicotine Addiction
How nicotine affects developing brains and mental health.

Step 1: Analyze the physiological effects of nicotine

Nicotine is a powerful stimulant. Stimulants increase central nervous system activity, which leads to an increase in heart rate and blood pressure.

• This rules out b) low blood pressure and d) a sluggish heart rate, as nicotine causes the opposite effects (high blood pressure and elevated heart rate).
• Nicotine is also known to act as an appetite suppressant, making c) obesity incorrect.

Step 2: Evaluate the impact on the developing brain

The brains of teenagers and young adults are still developing, particularly the prefrontal cortex which controls decision-making, impulse control, and mood regulation. Research shows that introducing nicotine during this critical developmental window can disrupt the formation of brain synapses. This disruption is strongly linked to an increased risk of cognitive deficits, attention deficits, and mental health issues, specifically mood disorders such as depression and anxiety.

Answer:

a) mood disorders