Neuroscience

Poor sleep can be linked to stroke

A new study finds that sleep problems can increase someone's risk of stroke. Sleep problems can include too little sleep (less than five hours), too much sleep (more than nine hours), poor quality, difficulty getting to sleep ...

Immunology

Stress accelerates immune aging, study finds

Stress—in the form of traumatic events, job strain, everyday stressors and discrimination—accelerates aging of the immune system, potentially increasing a person's risk of cancer, cardiovascular disease and illness from ...

Obstetrics & gynaecology

Treating infertility with drug-delivering microspheres

For an embryo to survive, it must attach to the lining of the uterus within days of conception. However, if this lining, called the endometrium, is too thin, the embryo can't latch on. Now, researchers reporting in ACS Biomaterials ...

Cardiology

AI imaging analysis prognostic in coronary artery disease

(HealthDay)—Reduced myocardial blood flow (MBF) and myocardial perfusion reserve (MPR) are prognostic for patients with coronary artery disease, according to a study published online Feb. 14 in Circulation.

Cardiology

Sleep, heart disease link leads from brain to bone marrow

Researchers have known for some time that poor sleep raises heart disease risk. Now, they've found a chemical chain reaction that helps explain that risk, leading from poor sleep to a white blood cell surge that promotes ...

Cardiology

Effective drug delivery to heart with tannic acid

Typical methods of drug delivery to the heart require surgical procedures involving incisions in the chest wall and bones. To efficiently treat cardiovascular and related vascular diseases without surgery, a KAIST research ...

Alzheimer's disease & dementia

Is Alzheimer's caused by disruptions to the brain's energy supply?

It is well known that Alzheimer's disease, the most common form of dementia, involves the accumulation of sticky proteins (plaques and tangles) in the brain. But we still don't know what the root cause of the disease is. ...

Diseases, Conditions, Syndromes

Understanding and preventing gangrene

Dear Mayo Clinic: I have heard that a stubbed toe can lead to gangrene in some individuals. Is that true? What are the signs of gangrene, and how can it be avoided?

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