Question 1
Many drugs used to treat migraine headaches contain caffeine. What mechanism does caffeine have that can help with migraine headaches?
Question 2
Josie is in her last weeks of pregnancy. During a routine check-up, she asks why she is suddenly experiencing swollen feet when she wears knee-high stockings (with a tight elastic band just below the knee). She is confused because an older relative wears support stockings to prevent swollen feet. Provide an explanation for her swelling feet and the difference between support hose and knee-high stockings.