Alzheimer's disease & dementia

Weight gain and loss may worsen dementia risk in older people

Older people who experience significant weight gain or weight loss could be raising their risk of developing dementia, suggests a study from Korea published today in the online journal BMJ Open.

Health

The best exercises for brain health

(HealthDay)—There's a lot you can learn from your elders, starting with the results of a multi-year study of exercise and brain health in seniors.

Medical research

Key drug target shown assembling in real-time

Over one-third of all FDA-approved drugs act on a specific family of proteins: G-protein coupled receptors (GPCRs). Drugs to treat high blood pressure, asthma, cancer, diabetes and myriad other conditions target GPCRs throughout ...

Cardiology

50 percent of people do not know they have high blood pressure

A study involving scientists from The University of Western Australia and the Royal Perth Hospital Medical Research Foundation has revealed 50 per cent of Australians living with high blood pressure do not realise they have ...

Neuroscience

Blood flow command centre discovered in the brain

A team of scientists from Australia, France, New Zealand and the UK has discovered a group of brain cells that function as a 'master-controller' for the cardiovascular system by orchestrating the control of blood flow to ...

Alzheimer's disease & dementia

What helps prevent dementia? Try exercise, not vitamin pills

If you want to save your brain, focus on keeping the rest of your body well with exercise and healthy habits rather than popping vitamin pills, new guidelines for preventing dementia advise.

Psychology & Psychiatry

Biomarker reveals PTSD sufferers at risk of suicide

The risk of suicide among individuals with post-traumatic stress disorder (PTSD) is much higher than the general population, but identifying those individuals at greatest risk has been difficult. However, a team at Yale has ...

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Hypertension

Hypertension, also referred to as high blood pressure, HTN or HPN, is a medical condition in which the blood pressure is chronically elevated. In current usage, the word "hypertension" without a qualifier normally refers to systemic, arterial hypertension.

Hypertension can be classified as either essential (primary) or secondary. Essential hypertension indicates that no specific medical cause can be found to explain a patient's condition. About 90-95% of hypertension is essential hypertension. Secondary hypertension indicates that the high blood pressure is a result of (i.e., secondary to) another condition, such as kidney disease or tumours (adrenal adenoma or pheochromocytoma).

Persistent hypertension is one of the risk factors for strokes, heart attacks, heart failure and arterial aneurysm, and is a leading cause of chronic renal failure. Even moderate elevation of arterial blood pressure leads to shortened life expectancy. At severely high pressures, defined as mean arterial pressures 50% or more above average, a person can expect to live no more than a few years unless appropriately treated. Beginning at a systolic pressure (which is peak pressure in the arteries, which occurs near the end of the cardiac cycle when the ventricles are contracting) of 115 mmHg and diastolic pressure (which is minimum pressure in the arteries, which occurs near the beginning of the cardiac cycle when the ventricles are filled with blood) of 75 mmHg (commonly written as 115/75 mmHg), cardiovascular disease (CVD) risk doubles for each increment of 20/10 mmHg.

This text uses material from Wikipedia, licensed under CC BY-SA