Understanding Type 1 diabetes
A starting point for families, friends, teachers, and the newly diagnosed. Clear explanations, warning signs, and a vetted set of organizations and research links you can trust.
What is T1D?
Type 1 diabetes is an autoimmune condition. The body's immune system mistakenly destroys the insulin-producing beta cells in the pancreas, so the body can no longer make the insulin it needs to turn food into energy. People with T1D depend on insulin — by injection or insulin pump — every single day, for life.
T1D is not caused by diet, weight, or lifestyle. It's most often diagnosed in children, teens, and young adults, but it can develop at any age. There is currently no cure — but research, much of it funded by Breakthrough T1D, is actively working toward one.
Want the full comparison with Type 2? Read our T1D vs T2D guide →
Warning signs of T1D
T1D can come on quickly, especially in children. Catching it early can prevent a life-threatening emergency called diabetic ketoacidosis (DKA). If you or someone you love is showing these signs, see a clinician right away.
- • Extreme thirst
- • Frequent urination
- • Sudden, unexplained weight loss
- • Constant exhaustion
- • Fruity-smelling breath
- • Blurred vision
- • Increased hunger
- • Bedwetting in a previously dry child
- • Nausea or stomach pain
Newly diagnosed? Start here.
A new T1D diagnosis is a lot — for the person living with it and for everyone around them. You are not alone, and you don't have to learn it all overnight.
Lean on your care team
Your endocrinologist, diabetes educator (CDCES), and dietitian are your first line. Bring every question — there are no silly ones.
Find your people
Connect with families who've been there. Breakthrough T1D's Bag of Hope and Beyond Type 1's peer programs are great starting points.
Take it one day at a time
You'll learn carb counts, basal/bolus, CGMs, and pump options. Progress beats perfection — every single day.
For schools & caregivers
Kids with T1D belong in every classroom, on every team, and at every sleepover. A little preparation goes a long way.
At school
- • Build a 504 Plan or Diabetes Medical Management Plan (DMMP).
- • Train staff on low/high blood sugar response and glucagon.
- • Use the ADA's Safe at School toolkit for templates and rights.
Friends & family
- • Learn to recognize a low (shaky, sweaty, confused).
- • Keep fast-acting sugar on hand — juice or glucose tabs.
- • Ask before you offer food, and never police what they eat.
Lows, highs, and DKA
Low blood sugar (hypo)
Shaky, sweaty, confused, irritable. Treat with 15g fast-acting carbs (juice, glucose tabs). Recheck in 15 minutes. If unconscious, give glucagon and call 911.
High blood sugar (hyper)
Thirsty, tired, frequent urination. Follow the person's correction plan, drink water, and check for ketones if persistently high.
DKA (diabetic ketoacidosis)
Nausea, vomiting, fruity breath, deep breathing, confusion. DKA is a medical emergency — call 911 or go to the ER immediately.
Beads of Hope shares community stories and awareness information, not medical advice. Always consult a qualified clinician for medical decisions.
Trusted organizations
Independent, well-established nonprofits and agencies we recommend bookmarking.
Breakthrough T1D (formerly JDRF)
Global leader in funding Type 1 diabetes research and the One Walk community.
American Diabetes Association (ADA)
Education, advocacy, and the Safe at School program for students with diabetes.
Beyond Type 1
Stories, peer programs, and resources for kids, teens, and adults living with T1D.
Children with Diabetes
Family-led nonprofit with conferences, school tools, and online community.
College Diabetes Network
Peer support and resources for young adults with T1D heading to college.
CDC — Diabetes Basics
Federal public-health overview of diabetes types, risk factors, and management.
Research & further reading
NIDDK — What is Type 1 Diabetes?
Plain-language overview from the U.S. National Institute of Diabetes and Digestive and Kidney Diseases.
ADA Standards of Care in Diabetes
Annually updated, evidence-based clinical guidelines for diabetes care.
Breakthrough T1D — Research Pipeline
Current research priorities: cures, prevention, and improving lives today.
Safe at School (ADA)
Rights, sample 504 plans, and training resources for families and educators.
Turn awareness into action
Share your story, shop the collection, or donate — every bead helps fund a future without T1D.