For example: if ((wet && cold) || (poor && hungry)) { System.out.println(I'm miserable!); The println statement will be executed if wet and cold are both true, or if poor and hungry are both true.
Smoking causes depression because of the withdrawal from a physically and psychologically addictive substance, called nicotine. Nicotine which acts as a receptor for the neurotransmitter, acetylcholine, indirectly stimulates the release of another neurotransmitter, dopamine, in the brainâs reward or motivation center.
Those who are dependent on nicotine exhibit one or more of the following symptoms when undergoing withdrawal: 1  Anxiety. 2  Depression. 3  Intense cravings to smoke or use tobacco.  Inability to stop smoking or use of 1  tobacco. Withdrawal symptoms when trying to quit smoking.  Continuing to smoke despite the health problems that it creates.