Dark matter, older than the big bang?

A new theory that dark matter appeared before the big-bang trainer of the universe is advanced by American astrophysicists, who also think they have found a way to detect it. Dark matter, which makes up about a quarter of the universe, is certainly one of…

Intensive BP control tied to better brain health

Tight control of blood pressure may slow the onset of brain white matter lesions that inevitably accompany aging, according to a new study published by JAMA. A magnetic resonance imaging of 449 people showed that hypertensive patients who were able to lower their systolic blood…

Chronic insomnia related to memory problems

The cognitive function of people aged 45 and over is disrupted by chronic insomnia, regardless of the effect of other health problems associated with this sleep disorder that affects approximately 10% of the adult population. Altered functions include the memory of facts, concepts, words and…