Illness
VeryWell Health Common illnesses in teens
HuffPost What it's like to be a teen living with a chronic illness
Teens Health Dealing with a health condition
ACS Cancer in adolescents
Teen Cancer Trust Cancer warning signs
NCCS Guide for friends with cancer
US News & Worlds Report Why teens should be heart healthy
Harvard Med School Teens getting less sleep, raising heart risk
ScienceDaily Teens need vigorous physical activity and fitness to cut heart risk
Stanford Children's Health Prevention of heart disease starts in childhood
ADA Teen resources for diabetes
MedScape Youth onset diabetes need different approach to adults
WebMD HIV/AIDS and teens FAQ
CDC Comprehensive guide to HIV/AIDS
Unicef Every few minutes a teenage girl is infected with HIV