1) Doctors provide tips on how to avoid common diseases such as getting annual checkups after age 35, eating more fruits and vegetables and less fat and sugar, drinking 8 glasses of water per day, and taking care of one's back.
2) Kem writes to Dr. Robinson about having trouble sleeping and back pain from sitting too much.
3) Dr. Robinson advises Kem to listen to calm music before bed, not watch TV or drink coffee before sleeping, and to sit with an upright back.