Could going vegan protect you from heart failure?

New study says a plant-based diet cuts the risk of hospitalization by 40%

Eating a plant-based diet could lower the risk of needing treatment for heart failure, a new study finds.

Researchers say that consuming a diet heavy in fruits, vegetables, beans and fish lowered the risk of being hospitalized with heart failure by up to 41 percent.

A diet - rich in fried food and processed meats - raised the risk as high as 72 percent, according to Daily Mail.

Walk your brain younger: As little as one hour of exercise a week 'could reduce the risk of dementia and improve mental fitness'

Regular exercise could boost your mental fitness as well as physical, and reduce your risk of developing dementia, scientists say.

A study has found people who do more physical activity – even if it is as light as just walking – slow their brains' ageing process and are less likely to get dementia, according to Daily Mail.

The findings are good news for people who try to stay fit but aren't marathon runners

The researchers say all exercise, even if it's less than the two-and-a-half hours per week recommended, could be enough to build up and have benefits.

And every extra hour could wipe another year off someone's brain age, the research suggests.

Psychologists find smiling really can make people happier

Smiling really can make people feel happier, according to Science Daily.

Coauthored by researchers at the University of Tennessee, Knoxville and Texas A&M, the paper looked at nearly 50 years of data testing whether facial expressions can lead people to feel the emotions related to those expressions.

"Conventional wisdom tells us that we can feel a little happier if we simply smile. Or that we can get ourselves in a more serious mood if we scowl," said Nicholas Coles, UT PhD student in social psychology and lead researcher on the paper.

Ebola outbreak 'not global emergency yet'

The World Health Organization says the spread of Ebola in the Democratic Republic of Congo is not yet a global health emergency.

The Ebola outbreak is the second biggest in history - infecting 1,206 people and killing 764. It shows no sign of being contained soon, according to BBC.

Efforts by healthcare workers have been hampered by conflict and rebel attacks.

'Dismantling cancer' reveals weak spots

Scientists have taken cancer apart piece-by-piece to reveal its weaknesses, and come up with new ideas for treatment.

A team at the Welcome Sanger Institute disabled every genetic instruction, one at a time, inside 30 types of cancer.

It has thrown up 600 new cancer vulnerabilities and each could be the target of a drug.

The study heralds the future of personalized cancer medicine. At the moment drugs like chemotherapy cause damage throughout the body.