. Does Depressants slows down the body reactions? What is the most common drug among students ages 13- 21.
Slow down the body's reactions, decrease heart & breath rates, lower blood pressure, relax muscles & relieve tension. *

Depressants
Amphetamines
Stimulants
Narcotics

1.   Yes, Depressant substances reduce arousal and stimulation. They do not necessarily make a person feel depressed. They affect the central nervous system, slowing down the messages between the brain and the body. They can affect concentration and coordination.

2.   Among youth, the top 3 substances (in ranked order) are alcohol, marijuana, and vaping products like e-cigarettes. Although opioids are a significant menace among younger individuals and are driving the epidemic, research shows that teenage opioid use is relatively low. However, all adolescents, teens, and young adults who use drugs are at risk for substance abuse problems. In fact, 9/10 individuals who abuse nicotine, alcohol or other drugs began using these substances before the age of 18. People who began using addictive substances before age 15 are 7 times more likely to develop a substance problem than those who first use after age 21 Every year that substance use is delayed during the period of adolescent brain development, the risk of addiction and substance abuse decreases.

3.   C.                                                                                                       Repeated misuse of prescription stimulants, even within a short period, can cause psychosis, anger, or paranoia. If the drug is injected, it is important to note that sharing drug injection equipment and having impaired judgment from drug misuse can increase the risk of contracting infectious diseases such as HIV and hepatitis.

Prescription stimulants increase the activity of the brain chemicals dopamine and norepinephrine. Dopamine is involved in the reinforcement of rewarding behaviors. Norepinephrine affects blood vessels, blood pressure and heart rate, blood sugar, and breathing.

When misusing a prescription stimulant, people can swallow the medicine in its normal form. Alternatively, they can crush tablets or open the capsules, dissolve the powder in water, and inject the liquid into a vein. Some can also snort or smoke the powder.

Explanation:

Feel free to give brainliest.

Explanation:

b) the heart is a pump made of muscle and that is difficult to grow in the lab.

the answer should be c