cascading effect

[peppy_man]

I think that a 'cascading effect' means a situation in which one thing causes other problems.
For example, a man had a cold, he had to miss school, he failed the year,
this stressed him, his cold developed into pneumonia etc.
To put it simply, in my understanding, a cacading effect is a terrible vicious circle.

BTW, can 'cascading effect' be used for positive situations?
Thank you.

[ugp]

I would say no, as the cascading effect is "as minor changes or damage to a magnet over time that eventually result in a complete breakdown of the magnet’s lifting capabilities." So I would say it is a negative if a similar happened in a positive way it would have been good luck.

[peppy_man]

Thank you for your response.
Could anyone give an example of a ' cascading effect'?