Answer:
Try not to eat as much Junk food, you still can, just not too much. [maybe like 1 bag per week or smth.]
Work out regularly.
eat veggies
5 down: thymus
12 down: spleen
12 across: suppressor T
11 across: macrophage
7 down: autoimmune
8 down: bone marrow
5 down: lymph nodes
If i did miss something, comment below ^_^