(The rapidity with which some of the operations [in trades like button and pin manufacture] are performed, exceeds what the human hand could, by those who had never seen them, be supposed capable of acquiring.) The nineteenth-century division of labor and the intensification of small but fast-repeated tasks created such ailments as weavers hand, sproutpickers thumb, stitchers wrist, and cotton-twisters hand. By 1840, the French physician D.M.P
The main measure was the excess relative risk for smoking one cigarette per day (RR1_per_day1) expressed as a proportion of that for smoking 20 cigarettes per day (RR20_per_day1), expected to be about 5% assuming a linear relation between risk and consumption (as seen with lung cancer)
"UK farmers call for weedkiller ban over Parkinson's fears"
However, new evidence suggests that they may have a detrimental effect on the nervous system and ultimately adverse neurological manifestations
To ease fears, tobacco companies developed safer filtered cigarettes, which promised to reduce the tar and nicotine smokers inhaled
