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Note that 'A' alone does not cause 'C' - 'A' 
triggers off 'B', and 'B' then causes 'C'.It contains illogical ways of evaluating oneself, 
others, and the world: demandingness, awfulis ing, discomfort-intolerance and people-rating; 
When talking with clients, we often refer to 
beliefs as 'self-defeating' rather than 'irrational', 
to emphasise that the main reason for replacing a 
belief is because it negatively affects their lives.Two Types of Disturbance 
REBT suggests that human beings defeat or 'dis turb' themselves in two main ways: (1) by holding 
irrational beliefs about their 'self' (ego distur bance) or (2) by holding irrational beliefs about 
their emotional or physical comfort (discomfort 
disturbance).For a person to go beyond feeling better to ac tually get better - that is, to achieve fundamental 
and lasting change - involves modifying the un derlying core beliefs that create difficulties for 
them in a range of situations.Dis comfort disturbance comes in two slightly differ ent but related flavours: 
o Low frustration-tolerance (LFT) results from 
demands that frustration not happen, followed 
by catastrophising when it does.It blocks a person from achieving their goals, 
creates extreme emotions that persist and 
which distress and immobilise, and leads to 
behaviours that harm oneself, others, and one's 
life in general.They are habitual or automatic, 
often consisting of underlying 'rules' about how 
the world and life should be. With practice, 
though, people can learn to uncover such subcon scious 'core' beliefs. At a superficial level you can feel better 
by altering your body chemistry (e.g. via exercise, 
dietary change or medication); by changing the 
situation (e.g. by avoiding contact with the other 
person); or by changing your inferences about the 
situation (for example, you make yourself feel 
less anxious by convincing yourself that the dis approval isn't going to happen).this proves I am no good' and so on. These 
beliefs create 'ego anxiety' - emotional tension 
resulting from the perception that one's 'self' or 
personal worth is threatened - and lead to other 
problems such as avoidance of situations where 
failure, disapproval, etc.o Low discomfort-tolerance (LDT) arises from 
demands that one not experience emotional or 
physical discomfort, with catastrophising 
when discomfort does occur.To achieve such change, 
REBT uses a range of cognitive, emotive and be havioural strategies (more about these later).2.