1. Ryan must consume more vodka now to feel its intended effects since he drinks three pints of vodka straight every day.

2. Despite not drinking alcohol for eight hours Ryan goes through bodily distress characterized by shaking and anxiety.

3. Ryan feels thirsty for alcohol daily which leads him to put alcohol first before his wellbeing and duties.

4. Ryan concentrates all his time on obtaining and drinking alcohol because he avoids seeing people and performing normal daily duties.

Ryan's actions fulfill substance dependence criteria according to Chapter 9's standards by showing tolerance, withdrawal symptoms, strong need for alcohol and social activity problems.

After only 8 hours without alcohol Ryan develops shaking and anxiety symptoms that show his addictive behavior. His body needs alcohol as shown through the symptoms listed in Chapter 9. The body of someone addicted to substances face extensive difficulty during withdrawal because they need the substance to function properly. Ryan suffers intensified physical symptoms that demonstrate his extreme dependence on alcohol.

Ryan keeps wanting alcohol despite understanding its negative effects and lets it override his need for self-care. The text from Chapter 9 shows his desperate need to use alcohol because he can't control himself. Ryan’s strong urge to drink demonstrates how addiction takes control of the mind and makes recovery very hard to achieve.

Ryan stops paying attention to his community ties and duties because he wants alcohol more than anything else. Addiction influences someone to ignore work responsibilities and disconnect from social contacts according to Chapter 9. The way Ryan keeps himself alone and fails to connect with others shows how alcohol abuse destroys both his life and his connections.