STRESS has led to more than 1000 Scots teachers contacting a specialist helpline in the last two years.
Figures from Teacher Support Scotland also show the number of issues reported by staff more than doubled from 2010 to 2011, from 675 to 1389.
Issues raised by teachers include anxiety, sleeplessness and relationship breakdown.
Julian Stanley, chief executive of the Teacher Support Network, said: “Staff are under unprecedented pressure. If a teacher is having a difficult time, it can affect hundreds of pupils.”