Cueing newly learned information in sleep improves memory, and here's how

Scientists have long known that sleep plays an important role in the formation and retention of new memories. That process of memory consolidation is associated with sudden bursts of oscillatory brain activity, called sleep spindles, which can be visualized and measured on an electroencephalogram (EEG). Now researchers have found that sleep spindles also play a role in strengthening new memories when newly learned information is played back to a person as they sleep, according to Science Daily.

The findings provide new insight into the process of memory consolidation during sleep. They may also suggest new ways to help people remember things better, according to the researchers.

Healthy eating does not offset the damage caused by a high-salt diet, study finds

Healthy eating does not offset a high-salt diet, new research suggests, according to Daily Mail.

Overseasoning food raises people's blood pressure regardless of how many fruit and vegetables they eat, a study found today.

Consuming more than the average person's daily salt intake of 8.5 grams causes the heart to work significantly harder to pump blood around the body, putting people at risk of life-threatening strokes, the research adds.

Lead author Dr Queenie Chan, said: 'We currently have a global epidemic of high salt intake and high blood pressure. This research shows there are no cheats when it comes to reducing blood pressure.

17humans injected with devastating parasite in search for vaccine

Seventeen humans have volunteered to host parasitic worms in their bodies for 12 weeks. It is hoped that the study will lead to a life-saving vaccine for one of the most devastating diseases in the world.

The Netherland-based study is centered around finding a cure for schistosomiasis, (also known as snail fever), a type of parasitic flatworm that enters the body through the skin and can cause devastating effects like kidney failure, bladder cancer and infertility, according to RT.

Regular walking may protect against heart failure post menopause

Walking for at least 40 minutes several times per week at an average to fast pace is associated with a near 25 percent drop in the risk of heart failure among post-menopausal women. The benefit appears to be consistent regardless of a woman's body weight or whether she engages in other forms of exercise besides walking.

About 6.5 million adults have heart failure, a condition in which the heart becomes too weak to pump enough blood to meet the body's needs. The risk of heart failure rises with age; women 75-84 years of age are three times as likely to have heart failure compared with women 65-74 years old, according to Science Daily.

Sipping acidic fruit teas can wear away teeth

Sipping acidic drinks such as fruit teas and flavoured water can wear away teeth and damage the enamel, an investigation by scientists has shown.

The King's College London team found that drinking them between meals and savouring them for too long increased the risk of tooth erosion from acid, according to BBC.

The research, in the British Dental Journal, looked at the diets of 300 people with severe erosive tooth wear.

It said the problem was increasing as people snacked more.