For what reason were hatters considered mad in the Victorian era?

Alice in Wonderland character
hammering the head during hat adjusting
empty hat symbols empty head
mercury poisoning
Mad hatter's disease is a common name for chronic mercury poisoning among hatmakers, who were often exposed to mercury vapors during felting works. Along with physical symptoms such as tremors or loss of hair and teeth, hatters tended to develop characteristic psychological traits, such as pathological shyness and marked irritability.
globalquiz.org
0
Correct this question
5
Very interesting!
reach: rather globaldiseaseshatshistorymadnessmedicinemental disordersVictorian era

Answers by country

Alice in Wonderland character
hammering the head during hat adjusting
empty hat symbols empty head
mercury poisoning
answers
flagAustralia
2%
2%
4%
88%
44
flagSouth Africa
7%
7%
7%
78%
14
flagPakistan
3%
10%
6%
77%
59
flagItaly
8%
8%
8%
75%
12
flagRepublic of Ireland
3%
17%
7%
71%
28
flagGermany
7%
9%
9%
70%
94
flagCanada
12%
18%
4%
65%
49
flagGreece
5%
30%
0%
65%
20
flagNorway
9%
9%
18%
63%
11
flagthe United States
13%
11%
10%
62%
557
flagthe United Kingdom
11%
15%
10%
60%
212
flagUkraine
20%
20%
0%
60%
10
flagthe Netherlands
23%
0%
23%
53%
13
flagFrance
8%
8%
33%
50%
12
flagPoland
13%
18%
18%
48%
16764
flagMalaysia
38%
9%
4%
47%
21
flagNigeria
31%
18%
6%
43%
16
flagIndia
18%
18%
19%
42%
250
flagthe Philippines
17%
14%
25%
42%
35
flagAlbania
33%
25%
16%
25%
12