Three reasons why it is good to donate your blood to breast cancer and explanation

Cancer treatments such as surgery, chemo therapy, and bone marrow transplantation or the cancer itself may cause the need for a blood transfusion.Blood is vital for the treatment of cancer patients

The person who utilize the progression principle will keep adding the difficulty of the exercise that he's doing, while the person who does not, will only stay stagnant.  the person that utilize progression principle, will get a stronger endurance because now his body is conditioned to do harsher routines.{the answer was already on verified)