Non-O blood group 'linked to higher heart attack risk

People with a non-O blood group have a slightly increased risk of heart attack and stroke, research suggests. According to BBC.

Scientists say it could be because higher levels of a blood-clotting protein are present in people with A, B and AB blood.

The findings could help doctors better understand who is at risk of developing heart disease, the researchers said.

The research, analysed studies involving 1.3m people.

Eating cheese could prevent you from getting liver cancer

Many people avoid regularly eating cheese over fears of what it may do to their waistlines. According to Daily mail

Yet, eating aged cheeses, including cheddar, brie and parmesan, could boost your liver health. 

These cheeses contain a compound, known as spermidine that stops damaged liver cells from replicating.

This may prevent liver fibrosis - the accumulation of scar tissue that occurs in most disease of the organ, and hepatocellular carcinoma (HCC), which is the most common form of liver cancer.

Air pollution: 'Heart disease link found'

Extremely small particles of pollution have the potential to evade the lungs' protective filter system and end up deep in the body, scientists suggest. According to BBC

Researchers speculate the particles could then build up in blood vessels and raise the risk of heart disease.

They say their early study - based on extremely small particles of gold - brings them a step closer to cracking the "mystery" of how air pollution and heart disease and stroke are linked.

Exercise 'keeps the mind sharp' in over-50s, study finds

Doing moderate exercise several times a week is the best way to keep the mind sharp if you're over 50, research suggests.

Thinking and memory skills were most improved when people exercised the heart and muscles on a regular basis, a review of 39 studies found. According to BBC

This remained true in those who already showed signs of cognitive decline.

Taking up exercise at any age was worthwhile for the mind and body, the researchers said.

Experts excited by brain 'wonder-drug'

Scientists hope they have found a drug to stop all neurodegenerative brain diseases, including dementia. According to BBC

In 2013, a team stopped brain cells dying in an animal for the first time, creating headline news around the world.

But the compound used was unsuitable for people, as it caused organ damage.

Now two drugs have been found that should have the same protective effect on the brain and are already safely used in people.