Why can't I stay awake in class?

Lately, I've come to realize that I have a very powerful tendency to fall asleep in class. It seems that I can't stay awake in any lecture style class where I have to listen to the professor and take down notes — where there is minimal engagement on my part. I've pretty much fallen asleep in all of my lecture classes, during one part or another for the whole semester. I think I'm getting regular sleep — six hours at a minimum. I don't like to drink coffee or anything.


Is smoking stunting my growth?

I was wondering if the rumor that smoking cigarettes stunts your growth is true? I am a smoker (not proud) but I do believe it may have stunted my growth or at least slowed it down. And if it does, is it permanent? Like, if I stop smoking, will my growth continue to do what it was originally going to do? Any information is helpful. Thank you I love this site.


How many friends should you have as an adult?

At around 25-30 years old, how many close friends would you need to have in order to live a healthy and happy life? Currently I have 4 reliable people I can depend on. I lost a few close friends along the way, I had 6 in total, should I try to get them back somehow, or just make new ones?


Is margarine really better than butter?

Why is margarine better than butter when margarine is just oil that is hydrogenated, which means that extra hydrogen atoms are added to oil (liquid) to make it firm? If oil is hydrogenated into butter, there would be no difference between butter and margarine because they would both be saturated fats with single bonds and the same number of hydrogen atoms. Is margarine really better than butter?