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MIGRAINE MARKERS: Women who experience migraines are also more likely to suffer from major heart problems, a new study has found.

Experts examined data on more than 110,000 nurses taking part in the American Nurses’ Health Study.

Over 20 years of follow-up, experts noted 1,329 major cardiovascular disease events and 223 women died from cardiovascular disease.

The team of researchers from Germany and the US found those who reported migraine problems had a 50% increased risk of cardiovascular diseases such as heart attacks and strokes.

HYPER-RHYTHMIC HEART: The controversial hyperactivity drug Ritalin has been linked to an increased risk of heart rhythm problems.

A new study found that the drug frequently used for attention deficit hyperactivity disorder (ADHD) is associated with an increased risk of abnormal heart rhythm in children and young people shortly after the start of treatment.

A team of researchers from Australia, Canada, and South Korea looked at more than 100,000 children prescribed methylphenidate — a central nervous system stimulant used to treat ADHD and narcolepsy.

Their study, published by The BMJ, found cases of arrhythmia were 61% more likely to have occurred during the first two months of use compared with periods of non-use.

And risk was even higher in the first three days of use.

The risk was more pronounced in children with existing congenital heart disease.