Because nicotine is possibly the most difficult addiction to kick, because inhaling smoke carries so much destructive potential, you can never try too hard or too often to quit. Now another study shows why smoking around children is a terrible idea.

“Not only are children who are surrounded by secondhand smoke at greater risk for asthma and other health problems,” says the Los Angeles Times, “but they may be more likely to have attentiondeficit/ hyperactivity disorder or learning disabilities too.”