Migraine symptoms and warning signs
Understand migraine pain, aura and attack stages, how long symptoms can last, and which new headache or vision changes need urgent care.
Independent health information
Understand what is happening—and what to do next.
Clear explanations of symptoms, conditions and treatment options, with urgent warning signs kept close to the answer.
Symptoms and conditions
Common health questions
Early shingles symptoms: before the rash and the first few days
Recognize possible early shingles, understand the treatment window, and know when eye symptoms or a mild rash need prompt assessment.
Diarrhea for 3 days, 4 days or a week: when to get help
When diarrhea lasts several days, learn when to get help, which symptoms need urgent attention and what to tell a healthcare professional.
Glaucoma symptoms: early warning signs and eye emergencies
Early glaucoma can have no symptoms. Learn the difference between gradual vision loss and a sudden painful red eye that needs immediate care.
Is shingles contagious? Touch, airborne spread and when it stops
Shingles can spread the virus that causes chickenpox. Learn how exposure happens, when precautions end and who needs extra protection.
Sciatica pain location: buttock, leg, foot and toe numbness
See how sciatica symptoms can travel into the foot, why toe numbness is not diagnostic, and which weakness or bladder changes need urgent care.
Plan your care
Appointments and medical bills
Prepare for an appointment
Printable sheets for symptoms, medicines and questions you want to ask.
Compare medical estimates
Add the quoted charges and see which costs are still missing.
Treatment options and costs
Guides to hearing aids, online insomnia treatment and paying for care.
Medical research
All research articlesTooth regrowth research: TRG035, human trials and what is possible
Where tooth-regrowth research stands in September 2026: TRG035, congenital missing teeth, enamel repair, implants and the evidence still missing.
Hearing restoration research: gene therapy, implants and hair cells
The 2026 hearing-research guide: Otarmeni for OTOF-related loss, hearing aids, cochlear implants and why hair-cell regeneration is a different problem.
Type 1 diabetes cell therapies: results, approvals and 2026 pipeline
Compare zimislecel, Lantidra, UP421, SC451 and discontinued VX-264 without confusing insulin production, insulin independence or immune protection.