While there is little evidence for tobacco being inherently medicinal, its harmfulness was observed even in the 18th century.

Using newly generated 'optogenetic' tobacco plants, research teams have investigated how plants process external signals. When it comes to survival, plants have a huge disadvantage compared to ...

The thinking was that the tobacco smoke would provide warmth and stimulation. Many people think of plants as nice-looking greens. Essential for clean air, yes, but simple organisms. A step change ...