Effects of Smoking on the Fetus

Most women also realize that smoking is bad during pregnancy. Unfortunately, it can be a very hard habit to give up, even for the best-intentioned parent. Smoking is not as detrimental to fetal brain development as heavy alcohol drinking, but it acts on many other organ systems. like the heart and lungs, that compromise the baby's health in a lasting way. Babies born to heavy smokers are substantially smaller than babies born to nonsmokers, averaging about half a pound lighter. In fact, smoki...

 Marijuana Use is Self-Regulating

There is a very nice self-titering aspect to cannabis. Each puff is a very small dose; the time lag between inhaling a puff and sensing its effect is small; and there is no desire for more after the high is there. I think the ratio, R, of the time to sense the dose taken to the time required to take an excessive dose is an important quantity. R is very large for LSD (which I've never taken) and reasonably short for cannabis. Small values of R should be one measure of the safety of psychedelic...

 Eisenhower and the Ability to Snear

While he was at Key West, Eisenhower had been told by [his doctor] that he would have to cut down from four packs of cigarettes per day to one. After a few days of limiting his smoking, Eisenhower decided that counting cigarettes was worse than not smoking at all, and he quit. He never had another cigarette in his life, a fact that amazed the gang, his other friends, the reporters who covered his activities, and the public. Eisenhower was frequently asked how he did it; he replied that it ...