And as nicotine is one of the most addictive substances on earth, it's one of the hardest to give up - there are sound scientific reasons why smokers believe cigarettes help them cope with everyday life. Thursday April 3, 8pm.
Caffeine is the most commonly used drug on the planet.
In fact, the world consumes the equivalent of one caffeine drink, per person, per day. It's such a part of everyday life, we don't even consider it a poison. Yet research shows that some of the effects of caffeine are similar to those experienced with hard drugs. But there is another side to the story - caffeine is being put to good use treating premature babies and the elderly. Thursday April 10, 8pm.