According to a new study conducted in the US, people today seem to be more addicted to nicotine as compared to two decades ago and found it much harder to quit smoking, including requiring more intensive and individualized treatment.
Dr. David P. Sachs, the lead author of the study and other colleagues from the Palo Alto Centre for Pulmonary Disease Prevention, California and the St. Helena Hospital, Napa, California found severe nicotine addiction had gone up 12% between 1989 and 2006 and the percentage of smokers classified as highly nicotine dependent, as much as 32%.