At seven calories per gram, alcohol has nearly twice as many calories as protein and carbohydrates.
At the same blood alcohol level, older adults may feel some of the effects of alcohol more intensely than their younger counterparts.
Drugs that are commonly classified as depressants include opiates, alcohol, and benzodiazepines; a depressant overdose is most often characterized by slow or shallow breathing, blue lips, cold or clammy skin, slow or faint pulse, snoring or gurgling noises and unresponsiveness.
Ecstasy often results in the same physical effects as other stimulants, such as cocaine and amphetamines including increases in heart rate and blood pressure.
Ending methadone treatment is much more difficult than other opiates due to the severity of the related withdrawal symptoms.