Cardiology

Mild thyroid disorders can cause severe heart problems

It has been known for more than 200 years that severe thyrotoxicosis may lead to cardiac arrhythmia (irregular heartbeat), one of the major reasons for sudden cardiac death. However, the risk associated with mild hyperthyroidism ...

Neuroscience

Human brain map contains never-before-seen details of structure

A cubic millimeter of brain tissue may not sound like much. But considering that tiny square contains 57,000 cells, 230 millimeters of blood vessels, and 150 million synapses, all amounting to 1,400 terabytes of data, Harvard ...

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