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.
The nicotine in cigarette smoke is addictive. When used in small amounts, nicotine creates a pleasurable feeling, which makes you want to smoke more. The more you smoke, the more you crave. One of the major problems is when you want to quit, you suffer withdrawal symptoms. You may experience headaches, nervousness, irritability and difficulty sleeping. Nicotine can also affect your mood, because it alters the chemistry of your brain and central nervous system.