Do cell phones emit radiation that can cause brain cancer

Anurse is giving instructions to a client who's going home with a cast on his leg. which teaching point is most critical?

How do nicotine and tobacco cause cancer? by decreasing blood-sugar levels by damaging or changing a cell's dna by increasing heart rate by increasing phlegm and mucous production

Analyze the relationship between good nutrition and disease prevention: how can reducing your saturated fat intake lower the risk of heart disease?