nicotine

(Massachusetts General Hospital) Young people with ADHD are not only at increased risk of starting to smoke cigarettes, they also tend to become more seriously addicted to tobacco and more vulnerable to environmental factors such as having friends or parents who smoke.

The report from Mass. General Hospital reseachers also found that individuals with more ADHD-related symptoms, even those without the full syndrome, are at greater risk of becoming dependent on nicotine than those with fewer symptoms.

(University of California - Los Angeles) So-called light (low) nicotine cigarettes act in a similar way to regular cigarettes by occupying most of the common nicotine receptors in the brain.

(American Academy of Sleep Medicine) In the first study across time into late childhood of the effects of prenatal drug exposure on sleep, prenatal drug exposure is associated with greater sleep problems in children.

In addition, nicotine has a unique effect, and early sleep problems predict later sleep problems.

Measuring nicotine content in toenail clippings can help predict a woman's heart disease risk, say researchers.