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When the diaphragm contracts,the volume of the lungs increases,and the intraalveolar pressure decreases.
Nicotine
A stimulant and addictive substance found primarily in cigarettes and other tobacco products.
Amphetamines
Stimulant drugs that increase the activity of the nervous system to enhance alertness and physical performance.
Substance Use Disorder
A persistent pattern of use of a substance characterized by frequent intoxication; impairment of physical, social, or emotional well-being; and possible physical addiction.
Physical Addiction
A physiological dependency on a substance, characterized by the emergence of withdrawal symptoms when the substance is not consumed.
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