大麻的危害性其实还没有定论，如果我们因此说没有香烟的危害大

会不会有误导的嫌疑？我觉得任何药物短期内能造成思维恍惚，就不能断然肯定其无危害性。See below quoted from WIKI:

Main article: Effects of cannabis

Cannabis has psychoactive and physiological effects when consumed. The minimum amount of THC required to have a perceptible psychoactive effect is about 10 micrograms per kilogram of body weight.[44] Aside from a subjective change in perception, the most common short-term physical and neurological effects include increased heart rate, lowered blood pressure, impairment of psychomotor coordination, concentration, and short-term episodic and working memory.[45] Long-term effects are less clear.[46][47]

各位还是看看下面这个连接吧，别以为危害小，在家可以经常玩玩，那就不好了。

http://en.wikipedia.org/wiki/Cannabis_(drug)

所有跟帖： 

• 就兴奋性而言，大麻比香烟要强，但是就physical addiction而言，它没有香烟强。 -jasondand- ♀ (270 bytes) () 10/28/2009 postreply 07:12:42

• 这个我同意！别说氟利昂，咳嗽药水更方便 ：） -温馨秋月- ♀ (132 bytes) () 10/28/2009 postreply 09:02:46