Dentistry

Mystery of children's 'chalky teeth' explained

One in five children have chalky tooth enamel—visible as discolored enamel spots—which often causes severe toothache and decay, and sometimes leads to abscesses, extractions and orthodontic problems.

Genetics

Newly mapped genes may hold keys to ADHD

Millions of American kids with attention-deficit/hyperactivity disorder (ADHD) may have a genetic vulnerability to the disease, a new study suggests.

Ophthalmology

Mayo Clinic Q and A: Relief for dry eyes

DEAR MAYO CLINIC: Since the beginning of winter, my eyes feel dry and scratchy. I can no longer wear contacts because my eyes burn and sting, and are watery. How can my eyes be dry and watery at the same time, and what can ...

Genetics

The memory of a heart attack is stored in our genes

Both heredity and environmental factors influence our risk of cardiovascular disease. A new study, by researches at Uppsala University, shows now that the memory of a heart attack can be stored in our genes through epigenetic ...

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