Early detection of cancer is the key to defeat cancer When a person is diagnosed with cancer at any stage he/she may undergo numerous mental harassment. A person with cancer may feel these things during Cancer Treatment . 1. A range of strong emotions, such as disbelief, fear, sadness, anxiety, and anger. These can be seen as a type of grief - cancer often involves a series of losses, such as the loss of good health, temporary or permanent changes to your appearance, etc. 2. The first reaction to a diagnosis is often shock – you may feel numb as if you aren't feeling any emotion. It may take time to accept that you have cancer, especially if you don't feel sick. This numbness can protect you as you gradually come to terms with the diagnosis. 3. Cancer treatments like radiation therapy have improved in recent years, but it can still be very frightening to hear the word "cancer". It's natural to worry about the treatment, side effects, and the long-t