Five words to do with health
Genki -- health; also vigour, energy, vitality, stamina, spirit.
O-genki desuka? -- How are you?
Isha -- doctor (medical)
Kangofu -- nurse (female); also kangonin -- nurse (male)
Byouin -- hospital
Kusuri -- medicine; also kusuriyubi -- ring finger
May contain kanji, when I figure out how to enter it....